David's Astronomy Pages CCD Images - Session 1156 (2023-10-11)

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Session Notes

12P/Pons-Brooks - Comet (Outburst) 103P/Hartley - Comet C/2021 X1 (Maury-Attard) - Comet C/2023 H2 (Lemmon) - Comet     Nova Cas 2021 - Nova (V1405 Cas)     AT 2022jsu - CV Type Transient AT 2023cub - Transient AT 2023tdi - Type BL Transient (QSO B1028+511)     LEDA 1488100 - Galaxy with Type Ia Supernova 2023olz     M31 AT 2023trk - Extragalactic Nova in M31 M31 2023-10a? - Extragalactic Nova in M31 M33 - Spiral Galaxy with Transient AT 2023nou M101 - Spiral Galaxy with Type IIL Supernova 2023ixf     NGC 1211 - Spiral Galaxy NGC 2708 - Spiral Galaxy with Type Ia Supernova 2023bee NGC 3893 - Spiral Galaxy with LRN Type Transient AT 2023uhx NGC 6745 - Spiral Galaxy with Transient AT 2023ucy NGC 7427 - Spiral Galaxy with Transient AT 2023uma     UGC 3174 - Irregular Galaxy with Type IIb Supernova 2023mut UGC 4992 - Spiral Galaxy with Transient AT 2023rpu UGC 5313 - Spiral Galaxy with Transient AT 2023tmr     - C/2022 A2 (PANSTARRS) attempt failed (due to cloud) - IC 1874 w/SN2023fu attempt failed (due to bad guding / developing cloud)     Variable Stars (photometric monitoring) - RZ LMi, BL Lac, X Tri      Nearby Stars (astrometric monitoring) - None

- All-night session (9.4 hrs), interrupted occasionally by cloud     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 4°C (min) - CCD Temperature:   -15°/-20° C - Notes from 2023-10-11 >>     -

12P/Pons-Brooks - Comet (Outburst)

12P/Pons-Brooks - 2023-10-11 (passing through Hercules) Sun Distance 2.98 AU Earth Distance 3.03 AU (453.8 million km) Passing near spiral galaxy  PGC 60226 (catalog mag +14.3)		12P/Pons-Brooks - 2023-10-11 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 22.35 arcsec/hr, Dec -25.58 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 90s exposure (single frame), 3x3 binning, Clear Filter 2023-10-11 20:33 UT (#1156017) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) Image details as left
12P/Pons-Brooks - 2023-10-12 am (passing through Hercules) Sun Distance 2.98 AU Earth Distance 3.03 AU (453.6 million km) Passing near spiral galaxy  PGC 60226 (catalog mag +14.3)		12P/Pons-Brooks - 2023-10-12 am Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 22.59 arcsec/hr, Dec -25.54 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 02:18 UT (#1156163-65) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 7 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 02:21 UT (#1156163-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
12P/Pons-Brooks - 2023-10-12 am Detail		12P/Pons-Brooks - 2023-10-12 am Detail
Annotated CCD Image (150% size, square root scale, cropped) 7 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 02:21 UT (#1156163-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated false-colour CCD Image (150% size, square root scale, cropped)) Image details as left
Images of 12P/Pons-Brooks on Comets 2023 Page >>

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103P/Hartley - Comet

103P/Hartley - 2023-10-12 (passing through Gemini) Sun Distance 1.06 AU (approaching) Earth Distance 0.40 AU (60.6 million km) Passing by HIP 36152 (catalog mag 6.54)		103P/Hartley - 2023-10-12  Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 157.96 arcsec/hr, Dec -130.98 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 60s exposure (single frame), 3x3 binning, Clear Filter 2023-10-12 00:08 UT (#1156102) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 00:13 UT (#1156101-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 103P/Hartley on Comets 2023 Page >>

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C/2021 X1 (Maury-Attard) - Comet

C/2021 X1 (Maury-Attard) - 2023-10-11 (passing through Pisces) Sun Distance 3.49 AU (receeding) Earth Distance 2.52 AU (377.5 million km)		C/2021 X1 (Maury-Attard) - 2023-10-11 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -90.98 arcsec/hr, Dec -12.06 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-10-11 21:46 UT (#1156043-45) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 6 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-10-11 21:49 UT (#1156043-48) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2021 X1 (Maury-Attard) on Comets 2023 Page >>

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C/2023 H2 (Lemmon) - Comet

C/2023 H2 (Lemmon) - 2023-10-12 (passing through Canes Venatici) Sun Distance 0.95 AU Earth Distance 1.05 AU (157.8 million km)		C/2023 H2 (Lemmon) - 2023-10-12 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 70.17 arcsec/hr, Dec 25.23 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 01:07 UT (#1156127-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, square root scale, cropped) 15 x 45s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 01:12 UT (#1156127-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2023 H2 (Lemmon) on Comets 2023 Page >>

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Nova Cas 2021 - Nova (V1405 Cas)

Nova Cas 2021 (Cassiopeia) Nova in Cassiopeia discovered 2021-03-18.4236,  by Yuji Nakamura (Japan) Magnitude at discovery +9.6 (unfiltered CCD) AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia Alias: Gaia21bpe, AT2021hkn, V1405 Cas

Nova Cas 2021 - 2023-10-12 (T+937.7d) Image below (2023-10-12.122) was taken 937.7 days after discovery of nova Nova is shown by white cross hairs.  Measured magnitude +11.81

Annotated CCD Image (100% size, linear scale, cropped) 5 x 30s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 02:56 UT (#1156179-83) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Nova Cas 2021 (V1405 Cas) Spectra - 2023-10-12 (T+937.7d)

Spectra produced in AstroMain using Image taken with Star Analyser 200 4 x 90s exposure (average combine), 2x2 binning, S Filter 2023-10-17 03:58 UT (#1157011-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova Cas 2021 on Novae Page >>

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AT 2022jsu - CV Type Transient

AT 2022jsu (Pegasus) AT 2022jsu (Type: CV) discovered 2022-05-08.430 UT by ZTF Alias: ZTF22aajjqti Discovery magnitude 14.24 (r-ZTF filter)  ( TNS 2022jsu)

AT 2022jsu - 2023-10-11 (T+521.4d) Image below (2023-10-11.869) was taken 521.4 days after discovery of 2022jsu Position of earlier transient (very faint or no longer visible) is shown by white cross-hairs Measured magnitude ? It is unclear if the very faint object in image at/near the position of AT 2022jsu is the object that brightened as transient 2022jsu (now very faint) or is a separate star object very close to the AT 2022jsu location (now no longer visible)

Annotated CCD Image (100% size, linear scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-11 20:54 UT (#1156026-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022jsu on Transients 2022 Page >>

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AT 2023cub - Transient

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AT 2023tdi - Type BL Transient (QSO B1028+511)

AT 2023tdi (Ursa Major) AT 2023tdi (Type: BL) discovered 2023-09-15.424 UT by Gaia Alias: Gaia23ckv,  QSO B1028+511 Discovery Mag 16.34 (G-Gaia Filter) vs Historic Mag 14.06 Known BL Lac type object (QSO B1028+511) brightens by 0.5 mag ( TNS 2023tdi | Gaia23ckv )

AT 2023tdi - 2023-10-12 (T+26.7d) Image below (2023-10-12.134) was taken 26.7 days after discovery of 2023tdi Position of reported transient (faint, stable) is shown by white cross-hairs Measured Magnitude +15.64 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 03:22 UT (#1156191-95) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023tdi on Transients 2023 Page >>

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LEDA 1488100 - Galaxy with Type Ia Supernova 2023olz

LEDA 1488100 with SN 2023olz (Taurus) SN 2023olz (Type: Ia) discovered 2023-08-04.405 UT by ZTF Alias: ZTF23aavxtvg Discovery Magnitude 19.02 (g-ZTF Filter)  ( TNS 2023olz )

LEDA 1488100 with SN 2023olz - 2023-10-12 (T+68.7d) Image below (2023-10-12.062) was taken 68.7 days after discovery of 2023olz Position of reported SN (not distinguishable) is indicated by white cross-hairs. Measured Magnitude +15.93 (Clear Filter, Nucleus + SN)

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 01:39 UT (#1156146-50) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023olz (in LEDA 1488100) on Supernova 2023 Page >>

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Nova AT 2023trk - Extragalactic Nova in M31

Nova AT 2023trk in M31 (Andromeda) AT 2023trk (Type: EGN) discovered 2023-09-26.461 UT by ATLAS Alias: ATLAS23tfn, PNV J00441143+4120239 Discovery Mag 17.38 (orange-ATLAS filter)  ( TNS 2023trk )

Nova M31 AT 2023trk - 2023-10-11 (T+15.5d) Image below (2023-10-11.917) was taken 15.5 days after discovery of 2023trk Position of reported transient (very faint) is shown by white cross-hairs Measured Magnitude ?

Annotated CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-11 22:10 UT (#1156052-56) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova AT 2023trk (in M31) on Transients 2023 Page >>

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Nova M31 2023-10a? - Extragalactic Nova in M31

Nova M31 2023-10a? (Andromeda) Nova M31 2023-10a? (Type: unk) discovered 2023-10-01.757 UT by Gianluca Masi Alias: PNV J00402967+4051414 Located 1522".9 west and 1467".1 south of the center of M31 Discovery Mag 17.9 The new source is not visible on Panstarrs DR1 and not visible of SDSS9, as available via Aladin. This new source is not visible on images taken on 2023-09-24 with the same setup.  ( Rochester, Extragalactic Novae - 2023 )

Nova M31 2023-10a? - 2023-10-11 (T+10.1d) Image below (2023-10-11.842) was taken 10.1 days after discovery of Nova M31 2023-10a? Position of reported nova (faint) is shown by white cross-hairs Measured Magnitude +18.20 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-11 20:20 UT (#1156010-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova M31 2023-10a? (in M31) on Transients 2023 Page >>

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M33 - Spiral Galaxy with Transient AT 2023nou

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M101 - Spiral Galaxy with Type IIL Supernova 2023ixf

M101 with SN 2023ixf (Ursa Major) SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki Alias: ZTF23aaklqou, AT2023iyi, AT2023jgd, AT2023jfz, PSN J14033858+5418421, PS23dij Discoverer Mag 14.9 (Clear filter)  ( Rochester Supernova site | TNS 2023ixf ) SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki at Mag 14.9 is located near M101's prominant star-forming region NGC 5461.  The supernova resulted from a exploding red supergiant and lies just 21 million light years away.  It's the closest core-collapse supernova to us since SN 1993J which lit up M81 (some 12 million ly away) in Spring 1993. The SN is designated of type II-L (L for 'linear') , which is characterised by a rapid rise to maximum brightness  followed by a slow and gradual decrease, that is thought to be brought about by ejection of the dead stars' outer hydrogen shell. (from Article "Summer's Super Supernova", AstNow Magazine, Sep 2023, pp 36-39)

M101 with SN 2023ixf - 2023-10-12 (T+145.4d) Image below (2023-10-12.079) was taken 145.4 days after discovery of 2023ixf Position of supernova (distinct) is shown by white cross-hairs Measured Magnitude +13.83 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 02:03 UT (#1156155-59) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023ixf (M101) on Supernova 2023 Page

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NGC 1211 - Spiral Galaxy

NGC 1211 (Cetus) Ring Galaxy, J.Lowrey List  [ Ring Galaxies ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-11 23:29 UT (#1156087-91) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1211 - Detail

Annotated CCD Image (150% size, square root scale, cropped) Image details as above

Negative CCD Image (150% size, square root scale, cropped) Image details as above

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NGC 2708 - Spiral Galaxy with Type Ia Supernova 2023bee

NGC 2708 with SN 2023bee (Hydra) SN 2023bee (Type: Ia) discovered 2023-02-01.750 UT by DLT40 Alias: DLT23b, ZTF23aabtgej, ATLAS23bqm Discovery Mag 17.26 (Clear filter)  ( Rochester Supernova site | TNS 2023bee )

NGC 2708 with SN 2023bee - 2023-10-12 (T+252.4d) Image below (2023-10-12.198) was taken 252.4 days after discovery of 2023bee Position of earlier SN (no longer visible) is shown by white cross-hairs

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 04:54 UT (#1156219-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 2708 with SN 2023bee - Earlier Image2023-02-14 (T+12.3d) Image below (2023-02-14.016) was taken 12.3 days after discovery of 2023bee Position of reported SN (bright) is shown by white cross-hairs Measured magnitude  +13.56

Annotated CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-02-14 00:32 UT (#1098121-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023bee (NGC 2708) on Supernova 2023 Page >>

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NGC 3893 - Spiral Galaxy with LRN Type Transient AT 2023uhx

NGC 3893 with AT 2023uhx (Ursa Major) AT 2023uhx (Type: LRN) discovered 2023-10-07.816 UT by Koichi Itagaki Discovery magnitude 17.2 (Clear filter) vs DSS Archival Image  Luminous Red Nova based on its peak luminosity, and narrow Balmer and Fe II emission lines.  ( TNS 2023uhx)

NGC 3893 - Spiral Galaxy, with AT 2023uhx (T+4.2d) NGC 3893 (Alias: Herschel II-738) with adajcent galaxies NGC 3896 (catalog mag +12.4 or +14.1) and PGC 36913 (catalog mag +15.5) [ Herschel 400 Objects ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 00:53 UT (#1156119-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3893 - Detail

Annotated CCD Image (125% size, square root scale, cropped) Image details as above

Negative CCD Image (125% size, square root scale, cropped) Image details as above

NGC 3893 with AT 2023uhx - 2023-10-12 (T+4.2d) Image below (2023-10-12.031) was taken 4.2 days after discovery of 2023uhx Position of reported transient (faint but distinct) is shown by white cross-hairs Measured magnitude +17.01 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 00:53 UT (#1156119-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023uhx (NGC 3893) on Transients 2023 Page >>

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NGC 6745 - Spiral Galaxy with Type II Supernova 2023ucy

NGC 6745 with SN 2023ucy (Lyra) SN 2023ucy (Type: II) discovered 2023-10-05.151 UT by ZTF Alias: ZTF23abhzxwm Discovery Mag +17.9 (r-ZTF filter) vs last non-detection image with 19.91 limiting mag It is noted that SN 2022prr (19:01:41.897, +40:45:03.67) occurred in Jul 2022 at approximately the same location as this newly reported transient 2023ucy (19:01:41.992, +40:45:05.89) (are they possibly related ?)  ( TNS 2023ucy ) ( TNS 2022prr )

NGC 6745 with SN 2023ucy - 2023-10-12 (T+7.0d) Image below (2023-10-12.106) was taken 7.0 days after discovery of 2023ucy Position of SN (bright) is shown by white cross-hairs Measured magnitude +14.88

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 02:41 UT (#1156172-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6745 with SN 2022prr - Earlier Image 2022-08-02 (T+6.7d) Image below (2022-08-02.995) was taken 6.7 days after discovery of 2022prr Position of SN (bright) is shown by white cross-hairs Measured magnitude +14.90

Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2022-08-02 23:59 UT (#1023011-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023ucy (NGC 6745) on Supernovae 2023 Page >>

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NGC 7427 - Spiral Galaxy with Transient AT 2023uma

NGC 7427 with AT 2023uma (Pegasus) AT 2023uma (Type: unk) discovered 2023-10-09.235 UT by ZTF Alias: ZTF23abivuzt Discovery magnitude 18.13 (r-ZTF filter) vs last non-detection limiting mag 20.56 (g-ZTF)  ( TNS 2023uma)

NGC 7427 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-11 21:37 UT (#1156039-40) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7427 - Detail

Annotated CCD Image (150% size, square root scale, cropped) Image details as above

NGC 7427 with AT 2023uma - 2023-10-11 (T+2.7d) Image below (2023-10-11.898) was taken 2.7 days after discovery of 2023uma Position of reported transient (not separately distinguishable) is shown by white cross-hairs Measured magnitude +14.54 (Transient + Nucleus)

Annotated CCD Image (150% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-11 21:37 UT (#1156039-40) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023uma (NGC 7427) on Transients 2023 Page >>

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UGC 3174 - Irregular Galaxy with Type IIb Supernova 2023mut

UGC 3174 with SN 2023mut (Orion) SN 2023mut (Type: IIb) discovered 2023-07-11.180 UT by ASAS-SN  / GOTO Group Alias: ASASSN-23fh Discovery Magnitude 15.2 (g-SLOAN Filter)  ( TNS 2023mut )

UGC 3174 with SN 2023mut - 2023-10-11 (T+92.8d) Image below (2023-10-11.990) was taken 92.8 days after discovery of 2023mut Position of reported SN (distinct) is indicated by white cross-hairs. Measured Magnitude +15.51(nucleus + SN)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-11 23:53 UT (#1156094-98) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023mut (in UGC 3174) on Supernova 2023 Page >>

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UGC 4992 - Spiral Galaxy with Transient AT 2023rpu

UGC 4992 with AT 2023rpu (Ursa Major) AT 2023rpu (Type: unk) discovered 2023-09-07.510 UT by ALeRCE Alias: ZTF23aaomzth, Gaia23cnt Discovery magnitude 18.01 (r-ZTF filter) vs DSS Archival Image Candidate SN near galaxy UGC 4992  ( TNS 2023rpu | Gaia23cnt )

UGC 4992 - Spiral Galaxy UGC 4992 (alias PGC 26625: catalog mag 15.4) with adajcent galaxy PGC 82381 (catalog mag +17.7)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 00:33 UT (#1156112-16) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 4992 with AT 2023rpu - 2023-10-12 (T+34.5d) Image below (2023-10-12.017) was taken 34.5 days after discovery of 2023rpu Position of reported transient (faint) is shown by white cross-hairs Measured magnitude +17.01 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-10-12 00:33 UT (#1156112-16) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023rpu (UGC 4992) on Transients 2023 Page >>

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UGC 5313 - Spiral Galaxy with Type II Supernova 2023tmr

UGC 5313 with SN 2023tmr (Leo) SN 2023tmr (Type: II) discovered 2023-09-24.520 UT by ALeRCE Alias: ZTF23abgnvsh, Gaia23crx Discovery magnitude 17.01 (r-ZTF filter) Candidate SN near galaxy UGC 5313  ( TNS 2023tmr | Gaia23crx )

UGC 5313 - Spiral Galaxy UGC 5313 (alias PGC 28533: catalog mag 14.4) with nearby galaxy PGC 28557 (catalog mag 14.6)

Annotated CCD Image (50% size, square root scale) 180s exposure (single frame), 3x3 binning, Clear Filter 2023-10-12 03:42 UT (#1156202) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 5313 with SN 2023tmr - 2023-10-12 (T+17.6d) Image below (2023-10-12.154) was taken 17.6 days after discovery of 2023tmr Position of reported supernova (faint / barely distinguishable) is shown by white cross-hairs Measured magnitude ?

Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2023-10-12 03:42 UT (#1156202) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023tmr (UGC 5313) on Supernovae 2023 Page >>

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