David's Astronomy Pages Images - Session 1270 (2024-11-16)

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Images (S1271)

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Session Notes

Gliese 65 - Nearby Star (Luyten 726-8, UV Cet)  (8.7 ly)     AT 2023au - CV Type Transient  (non-detection) AT 2023vqa - Type ulens? Transient AT 2023ypm - CV Type Transient  (non-detection) AT 2024tde - Type M dwarf Transient AT 2024zys - CV Type Transient AT 2024aapb - CV Type Transient AT 2024aart - Type HPM Transient     M31 - Spiral Galaxy with Type FeII Transient AT 2024aayx M31 - Spiral Galaxy with Nova M31 2024-11b? (not distinguishable) MCG -1-60-14 - Spiral Galaxy with Type II Supernova 2023joj  (non-detection)     NGC 493 - Spiral Galaxy with Type Ia-02cx Supernova 2022ywf (Attempt) NGC 5162 - Spiral Galaxy with Type II Supernova 2024aawh     SN 2024xqt - Type Ia Supernova     Variable Stars (photometric monitoring) - RX And, U And, TT Ari, BL Lac, DY Per, T CrB     Nearby Stars (astrometric monitoring) - Gliese 65 (UV Cet)

- Attempted All-Night Session (11.8 hrs), interrupted by rain & cloud     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 2°C (min) - CCD Temperature: -20°C - Notes from 2024-11-16 >>     -

Observing Result

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Gliese 65 - Nearby Star (Luyten 726-8, UV Cet) - 8.7 ly distance

Gliese 65 (Cetus) Alias: Luyten 726-8, UV Cet 8.7 ly distance. Binary Star 762-8 A (BL Cet), 762-8 B (UV Cet) [ Nearby Stars ]

Annotated CCD Image (50% size, linear scale) 5 x 15s exposure (average combine), 3x3 binning, Clear Filter 2024-11-16 22:20 UT (#1270106-10) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Gliese 65 - Earlier Image (2024-11-06)

Annotated CCD Image (35% size, linear scale) 4 x 15s exposure (average combine), 2x2 binning, Clear Filter 2024-11-06 00:19 UT (#1262098-103) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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AT 2023au - CV Type Transient (non-detection)

AT 2023au (Cetus) AT 2023au (Type: CV) discovered 2023-01-03.406 UT by Gaia Alias: Gaia23acc Discovery Magnitude 16.93 (G-Gaia Filter) Outburst in confirmed CV  ( TNS 2023au | Gaia23acc )

AT 2023au - 2024-11-16 (T+683.6d) Image below (2024-11-16.956) was taken 683.6 days after discovery of 2023au Position of earlier transient (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +17.8 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-11-16 23:00 UT (#1270132-36) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023au on Transients 2023 Page >>

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AT 2023vqa - Type ulens? Transient

AT 2023vqa (Cassiopeia) AT 2023vqa (Type: ulens?) discovered 2023-10-16.093 UT by Gaia Alias: Gaia23cxk Alertting Magnitude 15.33 (G-Gaia Filter) vs Historic Magnitude 15.58 +/- 0.04 SD Bright gal.plane source candidate microlensing event or Be-type outburst rises by 0.3 mag Source showed a similar outburst in 2017 (see graph on Gaia page)  ( TNS 2023vqa | Gaia23cxk )

AT 2023vqa - 2024-11-16 (T+397.8d) Image below (2024-11-16.882) was taken 397.8 days after discovery of 2023vqa Position of earlier transient (visible) is shown by white cross-hairs Measured Magnitude +15.56 (Clear Filter) Star is most likely at its normal state  (~ 15.58 G-Gaia Filter)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-16 21:16 UT (#1270071-73) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023vqa on Transients 2023 Page >>

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AT 2023ypm - CV Type Transient (non-detection)

AT 2023ypm (Pisces) AT 2023ypm (Type: CV) discovered 2023-11-27.230 UT by Gaia Alias: Gaia23dko Alerting Magnitude 16.54 (G-Gaia Filter) vs Historic Magnitude 18.11 +/- 0.36 SD 1.5 mag outburst in known CV PB 6108  ( TNS 2023ypm | Gaia23dko )

AT 2023ypm - 2024-11-16 (T+355.7d) Image below (2024-11-16.948) was taken 355.7 days after discovery of 2023ypm Position of earlier transient (not visible) is shown by white cross-hairs

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-11-16 22:49 UT (#1270123-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023ypm on Transients 2023 Page >>

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AT 2024tde - Type M dwarf Transient

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AT 2024zys - CV Type Transient

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AT 2024aapb - CV Type Transient

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AT 2024aart - Type HPM Transient

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M31 - Spiral Galaxy with Type FeII Transient AT 2024aayx

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M31 - Spiral Galaxy with Nova M31 2024-11b? (not distinguishable)

M31 with Nova M31 2024-11b? (Andromeda) Nova M31 2024-11b? (Type: unk) discovered 2024-11-14.103 UT by Kamil Hornoch et al. Alias: PNV J00425055+4112297 Discovery Magnitude 17.1 (Clear Filter)  ( Discovery Image )

M31 - Spiral Galaxy with AT 2024aayx - 2024-11-14 (T+1.5d) Cam2 Reference Image Position of Nova M31 2024-11b? (not visible in this exposure) is shown by blue circle Limits of M31 Spiral Galaxy is shown by white ellipse Th obvious star within blue target circle is a foreground star and not the transient

Annotated CMOS Image (16% size) (10s exposure, 1x1 binning) 2024-11-16 19:39 UT TS 80mm APO, ZWO ASI178MC

M31 -Spiral Galaxy with Nova M31 2024-11b? (T+2.7d) Transient position (not visible, next to the foreground star) is shown by white cross-hairs

Annotated CCD Image (70% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-16 19:49 UT (#1270026-30) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Nova M31 2024-11b? - 2024-11-16 (T+2.7d) Image below (2024-11-16.819) was taken 2.7 days after discovery of Nova M31 2024-11b? Position of reported transient (not separately distinguishable) is shown by white cross-hairs  Measured Magnitude +11.87 (Clear Filter), Star + Transient

Annotated CCD Image (150% size, log scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-14 02:49 UT (#1268079-83) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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

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MCG -1-60-14 - Spiral Galaxy with Type II Supernova 2023joj  (non-detection)

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NGC 493 - Spiral Galaxy with Type Ia-02cx Supernova 2022ywf (Attempt)

NGC 493 with SN 2022ywf (Cetus) SN 2022ywf (Type: Ia-02cx) discovered 2022-10-28.182 UT by ZTF Alias: ZTF22abqxkhd, PS22ktz Discovery Mag +19.95 (r-ZTF Filter)  ( TNS 2022ywf )

NGC 493 - Spiral Galaxy

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-16 21:43 UT (#1270083-87) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 493 with SN 2022ywf - 2024-11-16 (T+750.7d) Image below (2024-11-16.899) was taken 750.7 days after discovery of 2022ywf Position of earlier supernova (faded & no longer visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-16 21:43 UT (#1270083-87) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022ywf (NGC 493) on Supernova 2022 Page >>

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NGC 5162 - Spiral Galaxy with Type II Supernova 2024aawh

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SN 2024xqt - Type Ia Supernova

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