David's Astronomy Pages Images - Session 1178 (2023-12-29)

Images (S1177)

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Images (S1179)

Objects	Session Notes
Realtime Pictures from Current/Latest Session >>     AT 2023tdi - Type BL Transient (QSO B1028+511)     NGC 682 - Elliptical Galaxy with Type Ia Supernova 2023xtg NGC 807 - Elliptical Galaxy with Type Ia Supernova 2023abnb         Variable Stars (photometric monitoring) - BL Lac      Nearby Stars (astrometric monitoring) - None	- Attempted All-Night Session (2.0 hrs) but ended early due to wind and developing cloud.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  2°C (min) - CCD Temperature:   -20°/-30° C - Notes from 2023-12-29 >>     -

Observing Result

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AT 2023tdi - Type BL Transient (QSO B1028+511)

AT 2023tdi (Ursa Major) AT 2023tdi (Type: BL) discovered 2023-09-15.424 UT by Gaia Alias: Gaia23ckv,  QSO B1028+511 Discovery Mag 16.34 (G-Gaia Filter) vs Historic Mag 14.06 Known BL Lac type object (QSO B1028+511) brightens by 0.5 mag ( TNS 2023tdi | Gaia23ckv )

AT 2023tdi - 2023-12-29 (T+105.4d) Image below (2023-12-29.824) was taken 105.4 days after discovery of 2023tdi Position of reported transient (faint, fading slowly?) is shown by white cross-hairs Measured Magnitude +15.70 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-29 19:52 UT (#1178022-24) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023tdi on Transients 2023 Page >>

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NGC 682 - Elliptical Galaxy with Type Ia Supernova 2023xtg

NGC 682 with SN 2023xtg (Cetus) SN 2023xtg (Type: Ia) discovered 2023-11-14.527 UT by Koichi Itagaki Alias: Gaia23dny, PS23kun, ZTF23abqqixn, ATLAS23vth Discovery Magnitude 18.1 (Clear Filter) (Gaia, 2023-11-23 11:01:37 :  Alerting Magnitude 15.85 ) Confirmed SN Ia  ( TNS 2023xtg | Gaia23dny )

NGC 682 with SN 2023xtg - 2023-12-29 (T+45.3d) Image below (2023-12-29.837) was taken 45.3 days after discovery of 2023xtg Position of reported SN (faint) is indicated by white cross-hairs Poor quality image (poor sky transparency)

Annotated CCD Image (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-29 20:12 UT (#1178028-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023xtg (in NGC 682) on Supernova 2023 Page >>

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NGC 807 - Elliptical Galaxy with Type Ia Supernova 2023abnb

NGC 807 with SN 2023abnb (Triangulum) SN 2023abnb (Type: Ia) discovered 2023-12-27.132 UT by ZTF Alias: ZTF23abvnahb Discovery Magnitude 16.19 ( r-ZTF Filter)  ( TNS 2023abnb )

NGC 807 - Elliptical Galaxy

Annotated CCD Image (50% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-29 19:03 UT (#1178005-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 807 with SN 2023abnb - 2023-12-29 (T+2.7d) Image below (2023-12-29.788) was taken 2.7 days after discovery of 2023abnb Position of reported SN (not separately distinguishable) is indicated by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-29 19:03 UT (#1178005-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 807 with SN 2023abnb - Detail 2023-12-29 (T+2.7d)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-29 19:03 UT (#1178005-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023abnb (in NGC 807) on Supernova 2023 Page >>

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