David's Astronomy Pages Images - Session 1231 (2024-08-20)

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Images (S1232)

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Session Notes

AT 2022vxe - Type YSO? Transient AT 2023pua - CV Type Transient AT 2023abtv - CV Type Transient AT 2024koe - Transient in M31  (non-detection)     M33 - Spiral Galaxy with Nova M33 2024-08a?     NGC 797 - Spiral Galaxy with Type II Supernova 2024jjc NGC 6384 - Spiral Galaxy with Type Ia-02cx Supernova 2024pxl     UGC 1595 - Spiral Galaxy with Type IIP Supernova 2024kcu     Variable Stars (photometric monitoring) - BL Lac          Nearby Stars (astrometric monitoring) - None

- Post- Midnight Session (3.2hrs), Start delayed by and interrupted by cloud     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 10°C (min) - CCD Temperature:   -10°/-15° C - Notes from 2024-08-20 >>     -

Observing Result

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AT 2022vxe - Type YSO? Transient

AT 2022vxe (Cygnus) AT 2022vxe (Type: YSO?) discovered 2022-09-24.523 UT by Gaia Alias: Gaia22dzx Brightening in candidate YSO Alerting Magnitude 12.34 ( vs historic mag 12.65)  ( TNS 2022vxe, Gaia22dzx )

AT 2022vxe - 2024-08-21 (T+696.5d) Image below (2024-08-21.048) was taken 696.5 days after discovery of 2022vxe Position of reported transient (distinct, faded from T+42.4d) is shown by white cross-hairs Measured magnitude +12.01 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 90s exposure (single frame), 3x3 binning, Clear Filter 2024-08-21 01:09 UT (#1231029) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022vxe on Transients 2022 Page >>

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AT 2023pua - CV Type Transient

AT 2023pua (Pisces) AT 2023pua (Type: CV) discovered 2023-08-17.907 UT by MASTER Alias: MASTER OT J014017.78+150346.5 Discovery Magnitude 16.9 (Clear Filter)  ( TNS 2023pua )

AT 2023pua - 2024-08-21 (T+369.2d) Image below (2024-08-21.096) was taken 369.2 days after discovery of 2023pua Position of reported transient (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +18.5 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-21 02:23 UT (#1231047-49) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023pua on Transients 2023 Page >>

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AT 2023abtv - CV Type Transient

AT 2023abtv (Pegasus) AT 2023abtv (Type: CV) discovered 2023-12-26.986 UT by Gaia Alias: Gaia23duv Discovery magnitude 12.07 (G-Gaia Filter) vs Historic Magnitude 13.38 +/- 0.57 (SD) Gaia and WISE source brightens by 2 mag  ( TNS 2023abtv | Gaia23duv )

AT 2023abtv - 2024-08-21 (T+238.0d) Image below (2024-08-21.028) was taken 238.0 days after discovery of 2023abtv Position of reported transient (distinct, brightening slightly) is shown by white cross-hairs Measured Magnitude +11.97 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-08-16 00:05 UT (#1228080-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023abtv on Transients 2023 Page >>

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AT 2024koe - Transient  in M31 (non-detection)

AT 2024koe (Andromeda) AT 2024koe (Type: unk) discovered 2024-06-08.412 UT by GEOTS Alias: GEOTS-Balaji-2024-008 Discovery Magnitude 16.8 (Other Filter)  ( TNS 2024koe )

AT 2024koe - Wide View, 2024-08-21 (T+73.6d) Position of reported transient (not visible) is shown by white cross-hairs

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-21 01:36 UT (#1231033-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2024koe - 2024-08-21 (T+73.6d) Image below (2024-08-21.060) was taken 73.6 days after discovery of 2024koe Position of reported transient (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +18.5 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-21 01:36 UT (#1231033-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024koe (in M31) on Transients 2024 Page >>

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M33 - Spiral Galaxy with EGN Transient Nova M33 2024-08a?

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NGC 797 - Spiral Galaxy with Type II Supernova 2024jjc

NGC 797 with SN 2024jjc (Andromeda) AT 2024jjc (Type: II) discovered 2024-05-26.481 UT by ZTF Alias: ZTF24aaoupov Discovery Magnitude 17.19 (r-ZTF Filter)  ( TNS 2024epz )

NGC 797 with SN 2024jjc - 2024-08-21 (T+86.6d) Image below (2024-08-21.121) was taken 86.6 days after discovery of 2024jjc Position of reported supernova (very faint) is indicated by white cross-hairs Estimated Magnitude +17.4 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-21 03:03 UT (#1231059-63) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024jjc (in NGC 797) on Supernova 2024 Page >>

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NGC 6384 - Spiral Galaxy with Type Ia-02cx Supernova 2024pxl

NGC 6384 with SN 2024pxl (Ophiuchus) SN 2024pxl (Type: Ia-02cx) discovered 2024-07-23.274 UT by ATLAS Alias: ATLAS24lpk, ZTF24aawrofs Discovery Magnitude 14.58 (L-GOTO Filter) vs Prior Non-Detection Limiting Magnitude 19.5  ( TNS 2024pxl )

NGC 6384 with SN 2024pxl - 2024-08-15 (T+23.7d) Image below (2024-08-15.944) was taken 23.7 days after discovery of 2024pxl Position of reported SN (faint, fading) is indicated by white cross-hairs. Measured Magnitude +16.05 (Clear Filter) Poor quality image (poor sky transparency, single frame)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-15 22:47 UT (#1228038-42) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024pxl (in NGC 6384) on Supernova 2024 Page >>

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UGC 1595 - Spiral Galaxy with Type IIP Supernova 2024kcu

UGC 1595 with SN 2024kcu (Aries) SN 2024kcu (Type: IIP, z = 0.02) discovered 2024-06-01.482 UT by ZTF Alias: ZTF24aaqajjb Discovery Magnitude 16.97 (r-ZTF Filter)  ( TNS 2024kcu )

UGC 1595 with AT 2024kcu - 2024-08-21 (T+80.6d) Image below (2024-08-21.106) was taken 80.6 days after discovery of 2024kcu Position of reported supernova (faint) is shown by white cross-hairs Estimated Magnitude +17.6 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-08-21 02:41 UT (#1231052-56) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024kcu (in UGC 1595) on Supernova 2024 Page >>

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