David's Astronomy Pages Images - Session 1120 (2023-06-01)

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Images (S1120)

Objects	Session Notes
C/2019 T4 (ATLAS) - Comet     M101 - Spiral Galaxy with Type IIL Supernova 2023ixf M108 - Spiral Galaxy with Type Ic Supernova 2023dbc     UGC 10678 - Spiral Galaxy with Type Ia Supernova 2023foa     Variable Stars (photometric monitoring) - None      Nearby Stars (astrometric monitoring) -  None	- Attempted all night session. Observing during first half of night (2.1 hours) only due to overcast skies/ cloud during the second half of the night.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 6°C (min) - CCD Temperature:   -15°C - Notes from 2023-06-01 >>     -

C/2019 T4 (ATLAS) - Comet

C/2019 T4 (ATLAS) - 2023-06-01 (passing through Serpens) Sun Distance 5.16 AU  (receeding) Earth Distance 4.41 AU (660.2 million km)		C/2019 T4 (ATLAS) - 2023-06-01 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -14.56 arcsec/hr, Dec 8.14 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-06-01 23:35 UT (#1120005-11) 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 2023-06-01 23:35 UT (#1120005-11) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2019 T4 (ATLAS) on Comets 2023 Page >>

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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 - Spiral Galaxy with SN 2023ixf (T+13.3d) Position of supernova (bright) is shown by white cross-hairs [ Messier Objects  ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-06-01 23:58 UT (#1120015-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M101 with SN 2023ixf - 2023-06-01 (T+13.3d) Image below (2023-06-01.992) was taken 13.3 days after discovery of 2023ixf Position of supernova (bright) is shown by white cross-hairs Measured Magnitude +11.27

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-06-01 23:58 UT (#1120015-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M101 - Pre-SN - 2022-04-17 (T-396.8d) Position of later SN is shown by white circle

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-04-17 22:26 UT (#999013-17) 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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M108 - Spiral Galaxy with Type Ic Supernova 2023dbc

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UGC 10678 - Spiral Galaxy with Type Ia Supernova 2023foa

UGC 10678 with SN 2023foa (Hercules) SN 2023foa (Type: Ia) discovered 2023-04-13.823 UT by ATLAS Alias: KATS23G001 Discovery Mag 16.26 (Clear Filter)  ( Rochester Supernova site | TNS 2023foa )

UGC 10678 with SN 2023foa - 2023-06-02 (T+49.2d) Image below (2023-06-02.031) was taken 49.2 days after discovery of 2023foa Position of reported SN (faint / very faint) is shown by white cross-hairs Fairly poor quality image (diminished contrast due to bright sky background)

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-06-02 00:54 UT (#1120035-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023foa (UGC 10678) on Supernova 2023 Page >>

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