David's Astronomy Pages Images - Session 1228 (2024-08-15)

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Images (S1229)

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Session Notes

13P/Olbers - Comet 54P/de Vico-Swift-NEAT - Comet     Nova Cas 2021 - Nova (V1405 Cas) AT 2022vxe - Type YSO? Transient AT 2023abtv - CV Type Transient AT 2024ed - Transient AT 2024rwq - CV Type Transient AT 2024rzx - CV Type Transient     IC 1298 - Double Star M33 - Spiral Galaxy with Nova M33 2024-08a? M101 - Spiral Galaxy with Type IIL Supernova 2023ixf MCG +9-27-70 - Galaxy with Type Ia Supernova 2023acha     NGC 797 - Spiral Galaxy with Type II Supernova 2024jjc NGC 6384 - Spiral Galaxy with Type Ia-02cx Supernova 2024pxl NGC 6778 - Planetary Nebula     Variable Stars (photometric monitoring) - BL Lac        - Z And attempt failed (due to cloud)     Nearby Stars (astrometric monitoring) - HH And, 61 Cyg, Groombridge 34, EV Lac

- All-night Session (5.6hrs)     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 9°C - CCD Temperature:   -10°/-15° C - Notes from 2024-08-15 >>     -

Observing Result

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13P/Olbers - Comet

13P/Olbers - 2024-08-15 (passing through Coma Berenices) Sun Distance 1.37 AU (receeding) Earth Distance 1.99 AU (298.0 million km)		13P/Olbers - 2024-08-15 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 146.27 arcsec/hr, Dec -79.52 arcsec/hr)
Annotated CCD Image (50% size, log scale) 60s exposure (single frame), 3x3 binning, Clear Filter 2024-08-15 21:43 UT (#1228007) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log scale, cropped) 10 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 21:50 UT (#1228007-16) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
13P/Olbers - 2024-08-15		13P/Olbers - 2024-08-15 Detail
Annotated false-colour CCD Image (50% size, log scale) 10 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 21:50 UT (#1228007-16) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log scale, cropped) Image details as left
Images of 13P/Olbers on Comets 2024 Page >>

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54P/de Vico-Swift-NEAT - Comet

54P/de Vico-Swift-NEAT - 2024-08-16 (passing through Pisces) Sun Distance 2.18 AU Earth Distance 1.40 AU (209.8 million km) Passing by distant galaxies PGC 1281243 (catalog mag +16.6),  PGC 1280259 (+17.2) PGC 1281448 (catalog mag +17.9),  PGC 1280336 (+17.9)		54P/de Vico-Swift-NEAT - 2024-08-16 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 10.79 arcsec/hr, Dec 13.41 arcsec/hr) 54P/de Vico-Swift-NEAT (very faint) is shown by cross-hairs Measured Magnitude +18.76 (Clear Filter)
Annotated CCD Image (50% size, square root scale) 5 x 120s exposure (average combine), 3x3 binning, Clear Filter 2024-08-16 00:48 UT (#1228103-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (125% size, square root scale, cropped) Image details as left
Images of 54P/de Vico-Swift-NEAT on Comets 2024 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 ( TNS 2021hkn | Gaia21bpe )

Nova Cas 2021 (Nova) - 2024-08-15 (T+1246.6d) Image below (2024-08-15.994) was taken 1246.6 days after discovery of nova Nova is shown by white cross hairs.  Measured magnitude +11.98 (Clear Filter) (linked with Detection Threshold = 50)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 45s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 23:53 UT (#1228073-77) 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 2022vxe - Type YSO? Transient

AT 2022vxe (Cygnus) AT 2022vxe (Type: YSO?) discovered 2022-09-24.523 UT by Gaia Alias: Gaia22dzx Brightening in candidate YSO Alerting Magnitude 12.34 ( vs historic mag 12.65)  ( TNS 2022vxe, Gaia22dzx )

AT 2022vxe - 2024-08-16 (T+691.6d) Image below (2024-08-16.091) was taken 691.6 days after discovery of 2022vxe Position of reported transient (distinct, faded from T+42.4d) is shown by white cross-hairs Measured magnitude +12.02 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-16 02:18 UT (#1228137-40) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022vxe on Transients 2022 Page >>

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AT 2023abtv - CV Type Transient

AT 2023abtv (Pegasus) AT 2023abtv (Type: CV) discovered 2023-12-26.986 UT by Gaia Alias: Gaia23duv Discovery magnitude 12.07 (G-Gaia Filter) vs Historic Magnitude 13.38 +/- 0.57 (SD) Gaia and WISE source brightens by 2 mag  ( TNS 2023abtv | Gaia23duv )

AT 2023abtv - 2024-08-16 (T+233.0d) Image below (2024-08-16.001) was taken 233.0 days after discovery of 2023abtv Position of reported transient (distinct) is shown by white cross-hairs Measured Magnitude +12.10 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-08-16 00:05 UT (#1228080-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023abtv on Transients 2023 Page >>

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AT 2024ed - Transient

AT 2024ed (Vulpecula) AT 2024ed (Type: unk) discovered 2023-12-27.207 UT by Gaia Alias: Gaia24abq Discovery magnitude 15.91 (G-Gaia Filter) Apparently hostless transient No indication of progenitor object on DSS2 Colour or PanSTARRS DR1 plates  ( TNS 2024ed | Gaia24abq )

AT 2024ed - 2024-08-15 (T+232.8d) Image below (2024-08-15.967) was taken 232.8 days after discovery of 2024ed Position of reported transient (no longer visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +18.6 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 23:21 UT (#1228052-56) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024ed on Transients 2024 Page >>

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AT 2024rwq - CV Type Transient

AT 2024rwq (Lyra) AT 2024rwq (Type: CV) discovered 2024-08-07.328 UT by ATLAS Alias: ATLAS24mrh Discovery magnitude 13.50 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 19.56  ( TNS 2024rwq )

AT 2024rwq - 2024-08-15 (T+8.6d) Image below (2024-08-15.959) was taken 8.6 days after discovery of 2024rwq Position of reported transient (distinct, but fading) is shown by white cross-hairs Measured Magnitude +14.30 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 23:04 UT (#1228045-49) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024rwq on Transients 2024 Page >>

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AT 2024rzx - CV Type Transient

AT 2024rzx (Bootes) AT 2024rzx (Type: CV) discovered 2024-08-11.747 UT by MASTER Alias: MASTER OT J144401.19+220053.8 Discovery magnitude 12.5 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 19.6  ( TNS 2024rzx )

AT 2024rzx - 2024-08-15 (T+4.2d) Image below (2024-08-15.935) was taken 4.2 days after discovery of 2024rzx Position of reported transient (distinct) is shown by white cross-hairs Measured Magnitude +12.50 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 22:30 UT (#1228031-35) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024rzx on Transients 2024 Page >>

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IC 1298 - Double Star

IC 1298 (Aquila)

Annotated CCD Image (50% size, square root scale) 5 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 22:08 UT (#1228019-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 1298 - Detail

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

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M33 - Spiral Galaxy with EGN Transient Nova M33 2024-08a?

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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.  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 - 2024-08-16 (T+454.3d) Image below (2024-08-16.076) was taken 454.3 days after discovery of 2023ixf Position of supernova (faded & barely visible) is shown by white cross-hairs Estimated Magnitude +18.0 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-16 01:56 UT (#1228130-33) 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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MCG +9-27-70 - Galaxy with Type Ia Supernova 2023acha

MCG +9-27-70 with SN 2023acha (Draco) SN 2023acha (Type: Ia) discovered 2023-12-31.638 UT by ATLAS Alias: ATLAS23ych Discovery Magnitude 16.3 ( Clear Filter)  ( TNS 2023acha )

MCG +9-27-70 with SN 2023acha - 2024-08-16 (T+228.4d) Image below (2024-08-16.062) was taken 228.4 days after discovery of 2023acha Position of earlier SN (faded & no longer visible) is indicated by white cross-hairs. Non-Detection Limiting Magnitude +18.0 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-16 01:38 UT (#1228122-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023acha (in MCG +9-27-70) on Supernova 2023 Page >>

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NGC 797 - Spiral Galaxy with Type II Supernova 2024jjc

NGC 797 with SN 2024jjc (Andromeda) AT 2024jjc (Type: II) discovered 2024-05-26.481 UT by ZTF Alias: ZTF24aaoupov Discovery Magnitude 17.19 (r-ZTF Filter)  ( TNS 2024epz )

NGC 797 with SN 2024jjc - 2024-08-16 (T+81.6d) Image below (2024-08-16.046) was taken 81.6 days after discovery of 2024jjc Position of reported supernova (very faint) is indicated by white cross-hairs Estimated Magnitude +17.3 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-16 01:14 UT (#1228115-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024jjc (in NGC 797) on Supernova 2024 Page >>

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NGC 6384 - Spiral Galaxy with Type Ia-02cx Supernova 2024pxl

NGC 6384 with SN 2024pxl (Ophiuchus) SN 2024pxl (Type: Ia-02cx) discovered 2024-07-23.274 UT by ATLAS Alias: ATLAS24lpk, ZTF24aawrofs Discovery Magnitude 14.58 (L-GOTO Filter) vs Prior Non-Detection Limiting Magnitude 19.5  ( TNS 2024pxl )

NGC 6384 with SN 2024pxl - 2024-08-15 (T+23.7d) Image below (2024-08-15.944) was taken 23.7 days after discovery of 2024pxl Position of reported SN (faint, fading) is indicated by white cross-hairs. Measured Magnitude +15.94 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 22:47 UT (#1228038-42) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024pxl (in NGC 6384) on Supernova 2024 Page >>

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NGC 6778 - Planetary Nebula

NGC 6778 (Aquila) Ast.Now Deep Sky Challenge Object, Sep 2024 [ Deep Sky Challanges (Ast.Now) ]  [ Planetary Nebula ]

Annotated CCD Image (50% size, square root scale) 5 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 22:08 UT (#1228019-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6778 - Detail

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

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

CCD Image (100% size, log scale, cropped) 5 x 120s exposure (average combine), 2x2 binning, Clear Filter 2024-08-15 22:18 UT (#1228024-28) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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