David's Astronomy Pages Images - Session 1125 (2023-08-05)

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Images (S1126)

Objects	Session Notes
80P/Peters-Hartley - Comet (Attempt) C/2019 T4 (ATLAS) - Comet     AT 2023cvz - CV Type Transient     M101 - Spiral Galaxy with Type IIL Supernova 2023ixf     -  NGC 5297 w/AT2023mlt attempt failed (due to cloud)     Variable Stars (photometric monitoring) - SS Cyg      Nearby Stars (astrometric monitoring) -  61 Cyg   -  Barnards Star attempt failed (due to bad focus)	- Attempted all night session (2.7 hrs), that was interrupted by and then prematurely  ended by cloud.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 7.5°C (min) - CCD Temperature:   -15° C - Notes from 2023-08-05 >>     -

80P/Peters-Hartley - Comet (Attempted Observation)

80P/Peters-Hartley - 2023-08-05 (passing through Pegasus) Sun Distance 2.77 AU (approaching) Earth Distance 2.02 AU (302.4 million km) Expected position of comet (not visible) is shown by white circle		80P/Peters-Hartley - 2023-08-05, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -36.46 arcsec/hr, Dec 6.78 arcsec/hr) Expected position of comet (not visible) is shown by white circle
Annotated CCD Image (50% size, square root scale) 5 x 90s exposure (average combine), 3x3 binning, C Filter 2022-03-21 22:30 UT (#991079-83) 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
Images of 80P/Peters-Hartley on Comets 2023 Page >>

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C/2019 T4 (ATLAS) - Comet

C/2019 T4 (ATLAS) - 2023-08-05 (passing through Serpens) Sun Distance 5.46 AU  (receeding) Earth Distance 5.41 AU (809.8 million km)		C/2019 T4 (ATLAS) - 2023-08-05 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 10.72 arcsec/hr, Dec -8.61 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 7 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-05 22:56 UT (#1125004-10) 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 2023-08-05 22:56 UT (#1125004-10) 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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AT 2023cvz - CV Type Transient

AT 2023cvz (Aquila) AT 2023cvz (Type: CV) discovered 2023-03-07.959 UT by Gaia Alias: Gaia23bay Alerting Magnitude 12.85 (g-GAIA Filter) vs Historic Magnitude 13.79) ~0.9 mag rise in Gaia source  ( TNS 2023cvz | Gaia23bay)

AT 2023cvz - 2023-08-05 (T+151.0d) Image below (2023-08-05.997) was taken 151.0 days after discovery of 2023cvz Position of reported CV Transient (fading) is shown by white cross-hairs Measured magnitude +13.77

Annotated CCD Image (100% size, linear scale, cropped) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-05 23:56 UT (#1125017-18) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023cvz on Transients 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 )

M101 with SN 2023ixf - 2023-08-06 (T+78.3d) Image below (2023-08-06.053) was taken 78.3 days after discovery of 2023ixf Position of supernova (still distinct but fading) is shown by white cross-hairs Measured Magnitude +12.57 Poor quality image (passing cloud/poor transparency, single frame)

Annotated CCD Image (100% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2023-08-06 01:17 UT (#1125061) 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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