David's Astronomy Pages CCD Images - Session 1033 (2022-08-25)

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Images (S1034)

Objects	Session Notes
NGC 7492 - Globular Cluster     UGC 3923 - Spiral Galaxy with Transient AT 2022rqc     WHL0137-08 - Galaxy Cluster - Attempted Observation       - C/2019 U5 (PANSTARRS) & UGCA 19 attempts failed (due to cloud) - AT2021aesn, NGC 157 attempts failed (bad guiding/cloud)     Variable Stars (photometric monitoring) - None      Nearby Stars (astrometric monitoring) - None	- All night session (5.8h) delayed and interrupted by cloud     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 8.5°C (min) - CCD Temperature:  -5°/-10°C - Notes from 2022-08-25 >>    [ Local Files >> ]

NGC 7492 - Globular Cluster

NGC 7492 (Aquarius) Deep Sky Challenge Object, Ast.Now, Oct 2021  [ Deep Sky Challanges (Ast.Now) ] [ Globular Star Clusters ]

Annotated CCD Image (50% size, square root scale) 6 x 60s exposure (average combine), 3x3 binning, Clear Filter 2022-08-26 01:22 UT (#1033025-30) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7492 - Detail

Annotated CCD Image (100% size, square root scale, cropped) Image details as above

NGC 7492 - Earlier Image (2022-08-20)

Annotated CCD Image (100% size, square root scale, cropped) 4 x 90s exposure (average combine), 3x3 binning, Clear Filter 2022-08-20 01:44 UT (#1029089-93) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 7492 - Earlier Image (2009)

CCD Image (cropped) 10 x 30s exposure (average combine), 3x3 binning, C Filter  2009-12-04 18:43 h UT  (#402103-07 and 402221-25) 12" LX200R  (at f/5.7) + ST-10XME Unguided

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UGC 3923 - Spiral Galaxy with Type Ia Supernova 2022rqc

UGC 3923 with SN 2022rqc (Lynx) SN 2022rqc (Type: Ia) discovered 2022-08-20.487 UT by ZTF Alias: ZTF22abbozja  ( Rochester Supernova site | TNS 2022rqc )

UGC 3923 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2022-08-26 01:45 UT (#1033037-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3923 withSN 2022rqc - 2022-08-26 (T+5.6d) Image below (2022-08-26.066) was taken 5.6 days after discovery of 2022rqc Position of reported tranisent (formerly AT 2022rqc) is shown by white cross-hairs Measured magnitude +15.26 (nucleus + transient)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2022-08-26 01:45 UT (#1033037-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022rqc (UGC 3923) on Supernova 2022 Page >>

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WHL0137-08 - Galaxy Cluster (Attempted Observation)

WHL0137-08 (Cetus) WHL0137-08 is a massive Galaxy Cluster that has been reported to lense the most distant star ever seen.nicknamed 'Earendel' Alias for WHL0137-08 :  PSZ1 G155.25-68.42 (Cluster of Galaxies Candidate) in Aladin/Simbad. Earendel's discovery by the Hubble Space Telescope was reported on 30 March 2022. The star was detectable due to gravitational lensing caused by the presence of the galaxy cluster WHL0137-08 between it and the Earth, concentrating the light from the star. Position of WHL0137-08 (not visible) is shown by white circle Poor quality image (single frame/poor sky/cloud) Target to be rescheduled for a future session Adjacent foreground star is GSC 5277:150 (catalog mag 14.7) Two visible galaxies in FOV are PGC 1004133 (catalog mag +16.0) & PGC 1004572 (catalog mag +17.2)

Annotated CCD Image (50% size, square root scale) 180s exposure (single frame), 3x3 binning, Clear Filter 2022-08-26 03:08 UT (#1033074) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

WHL0137-08 - Detail Position of WHL0137-08 (not visible) is shown by white circle Poor quality image (single frame/poor sky/cloud) Target to be rescheduled for a future session WISEA J013724.93-082722.9 at the centre of WHL0137-08 is not visible but two adjacent galaxies (WISEA J013729.04-082830.9 & WISEA J013721.85-082629.9) are just visible

Annotated CCD Image (200% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2022-08-26 03:08 UT (#1033074) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

WHL0137-08 - Reference Image Pan STARRS DR1 Color via Aladin Brightest galaxies from WISEA catalog via NED are labelled

Annotated Picture Pan STARRS DR1 Color via Aladin

WHL0137-08 - Reference Image with Insert showing HST image of WHL0137-08

Annotated Picture Pan STARRS DR1 Color via Aladin

WHL0137-08 - Reference Image with Insert showing HST Composite image of WHL0137-08 with Lens Model Constraints Figure from paper "A highly magnified star at redshift 6.2" by B.Welch et al (March 2022, Nature 603(7903):815-818)

Annotated Picture Pan STARRS DR1 Color via Aladin

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