David's Astronomy Pages CCD Images - Session 1209 (2024-04-17)

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Session Notes

13P/Olbers - Comet 29P/Schwassmann-Wachmann - Comet C/2021 S3 (PANSTARRS) - Comet C/2023 A3 (Tsuchinshan-ATLAS) - Comet     AT 2022omj - CV Type Transient AT 2023sqn - CV Type Transient (non detection) AT 2024crd - Type Nova? Transient     M101 - Spiral Galaxy with Type IIL Supernova 2023ixf     NGC 3206 - Spiral Galaxy with Type IIn Supernova 2024bch NGC 3690 - Spiral Galaxy with Type Ia Supernova 2023wrk NGC 5235 - Spiral Galaxy with Transient AT 2024grb NGC 6433 - Spiral Galaxy with Type Ia Supernova 2024efn     UGC 8630 - Spiral Galaxy with Type II Supernova 2024drv       - Comet 62P Tsuchinshan, MCG -1-33-30 w/SN & NGC 6004 w/SN  attempts failed (due to cloud)     Variable Stars (photometric monitoring) - BL Lac - SS Her attempt failed (due to cloud)      Nearby Stars (astrometric monitoring) - Barnards Star - Groombridge 34 attempt failed (due to cloud)

- Attempted AllNight Session (6.4 hrs), second half of session was badly affected by thin moon-lit cloud  and the images from several targets although acquired were later rejected.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 0.5°C (min) - CCD Temperature:   -20°/-25°C - Notes from 2024-04-17 >>     -

13P/Olbers - Comet

13P/Olbers - 2024-04-17 (passing through Taurus) Sun Distance 1.60 AU (approaching) Earth Distance 2.29 AU (342.2 million km)		13P/Olbers - 2024-04-17 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 73.69 arcsec/hr, Dec 55.86 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-04-17 21:08 UT (#1209007-08) 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) 8 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-04-17 21:12 UT (#1209007-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 13P/Olbers on Comets 2024 Page >>

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29P/Schwassmann-Wachmann - Comet

29P/Schwassmann-Wachmann - 2024-04-17 (passing through Cancer) Sun Distance 6.19 AU (receeding slowly) Earth Distance 6.09 AU (911.2 million km)		29P/Schwassmann-Wachmann - 2024-04-17 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 8.52 arcsec/hr, Dec -3.55 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 9 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-04-17 21:28 UT (#1209017-25) 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 29P/Schwassmann-Wachmann on Comets 2023 Page >>
Images of 29P/Schwassmann-Wachmann on Comets 2024 Page >>

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C/2021 S3 (PANSTARRS) - Comet

C/2021 S3 (PANSTARRS) - 2024-04-18 (passing through Cygnus) Sun Distance 1.62 AU (receeding) Earth Distance 1.44 AU (215.3 million km)		C/2021 S3 (PANSTARRS) - 2024-04-18 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 61.51 arcsec/hr, Dec 103.22 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-04-18 01:33 UT (#1209118-19) 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 60s exposure (average combine), 3x3 binning, Clear Filter 2024-04-18 01:37 UT (#1209118-24) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2021 S3 (PANSTARRS) on Comets 2024 Page >>

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C/2023 A3 (Tsuchinshan-ATLAS) - Comet

C/2023 A3 (Tsuchinshan-ATLAS) - 2024-04-17 (passing through Virgo) Sun Distance 2.94 AU (approaching) Earth Distance 1.94 AU (290.7 million km)		C/2023 A3 (Tsuchinshan-ATLAS) - 2024-04-17 Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -91.40 arcsec/hr, Dec 21.74 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 180s exposure (single frame), 3x3 binning, Clear Filter 2024-04-17 22:48 UT (#1209056) 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 C/2023 A3 Tsuchinshan-ATLAS on Comets 2024 Page >>

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AT 2022omj - CV Type Transient (non-detection)

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AT 2023sqn - CV Type Transient

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AT 2024crd - Type Nova? Transient

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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 - 2024-04-17 (T+334.2d) Image below (2024-04-17.966) was taken 334.2 days after discovery of 2023ixf Position of supernova (faint, fading slowly) is shown by white cross-hairs Measured Magnitude +16.00 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-04-17 23:20 UT (#1209063-67) 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 3206 - Spiral Galaxy with Type IIn Supernova 2024bch

NGC 3206 with SN 2024bch (Ursa Major) SN 2024bch (Type: IIn) discovered 2024-01-29.252 UT by Patrick Wiggins Alias: ATLAS24bmx, PS24aap, GOTO24hm Discovery Magnitude 15.5 ( Clear Filter)  ( TNS 2024bch )

NGC 3206 with SN 2024bch - 2024-04-17 (T+79.7d) Image below (2024-04-17.984) was taken 79.7 days after discovery of 2024bch Position of reported SN (faint, fading) is indicated by white cross-hairs. Measured Magnitude +15.21 (Clear Filter) Poor quality image (poor sky conditions, single frame)

Annotated CCD Image (125% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2024-04-17 23:37 UT (#1209070) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024bch (in NGC 3206) on Supernova 2024 Page >>

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NGC 3690 - Spiral Galaxy with Type Ia Supernova 2023wrk

NGC 3690 with SN 2023wrk (Ursa Major) SN 2023wrk (Type: Ia) discovered 2023-11-04.229 UT by GOTO Alias: GOTO23bdo, ZTF23abpbdfm, ATLAS23vna Discovery Magnitude 18.11 (L-GOTO filter)  ( Rochester Supernova site ) ( TNS 2023wrk )

NGC 3690 with SN 2023wrk - 2024-04-18 (T+165.8d) Image below (2024-04-18.000) was taken 165.8 days after discovery of 2023wrk Position of SN (fading ?) is shown by white cross-hairs Measured Magnitude +16.69 (C Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-04-18 00:08 UT (#1209077-81) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023wrk (in NGC 3690) on Supernovae 2023 Page >>

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NGC 5235 - Spiral Galaxy with Transient AT 2024grb

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NGC 6433 - Spiral Galaxy with Type Ia Supernova 2024efn

NGC 6433 with SN 2024efn (Hercules) SN 2024efn (Type: Ia) discovered 2024-03-12.496 UT by CRTS Alias: SNhunt463 Discovery Magnitude 19.0 (V-crts-CRTS Filter) vs Prior Non-Detection Limiting Magnitude 21.0  ( TNS 2024efn )

NGC 6433 with SN 2024efn - 2024-04-18 (T+36.6d) Image below (2024-04-18.049) was taken 36.6 days after discovery of 2024efn Position of reported supernova (fading slowly ?) is shown by white cross-hairs Measured Magnitude +15.99 (Clear Filter) Poor quality image (poor sky conditions, uneven background)

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-04-18 01:18 UT (#1209111-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024efn (in NGC 6433) on Supernova 2024 Page >>

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UGC 8630 - Spiral Galaxy with Type II Supernova 2024drv

UGC 8630 with SN 2024drv (Canes Venatici) SN 2024drv (Type: II) discovered 2024-03-02.513 UT by ATLAS Alias: ATLAS24dct Discovery Magnitude 16.56 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Mag 18.86  ( TNS 2024drv )

UGC 8630 with SN 2024drv - 2024-04-17 (T+46.4d) Image below (2024-04-17.911) was taken 46.4 days after discovery of 2024drv Position of reported SN (distinct, fading slowly?) is indicated by white cross-hairs. Measured Magnitude +15.44 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-04-17 22:01 UT (#1209035-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024drv (in UGC 8630) on Supernova 2024 Page >>

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