David's Astronomy Pages Images - Session 1271 (2024-11-17)

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Images (S1272)

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Session Notes

18D/Perrine-Mrkos - Comet (attempted observation)     AT 2022aefa - Transient  (non-detection) AT 2024zck - CV Type Transient AT 2024aaaj - Type YSO? Transient AT 2024aasb - Type YSO? Transient     CGCG 182-071 - Galaxy with Type Ia Supernova 2023emd IC 415 - Spiral Galaxy with Type II Supernova 2023yzv  (non-detection) LEDA 1762640 - Galaxy with Transient AT 2024ety (non-detection) LEDA 2078778 - Galaxy with Type Ia Supernova 2024xqe MRK 0628 - Galaxy with Type Ia Supernova 2024aakr     SN 2024vcs - Type II Supernova in SDSS Galaxy  (non-detection)       - UGC 1596 w/SN2024yhg attempt failed (due to cloud/bad guiding)     Variable Stars (photometric monitoring) - X Tri     Nearby Stars (astrometric monitoring) - Groombridge 34, EV Lac, Scholz's Star, Teegardens Star

- Attempted All-Night Session (8 hrs), interrupted multiple times by cloud & snow showers     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 0.5°C (min) - CCD Temperature: -25°C - Notes from 2024-11-17 >>     -

Observing Result

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18D/Perrine-Mrkos - Comet (attempted observation)

18D/Perrine-Mrkos - 2024-11-18 (passing through Monoceros) Sun Distance 1.80 AU Earth Distance 1.09 AU (163.5 million km)		18D/Perrine-Mrkos - 2024-11-18 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 11.53 arcsec/hr, Dec -6.43 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 6 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-11-12 04:03 UT (#1266174-79) 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 18D/Perrine-Mrkos on Comets 2024 Page >>

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AT 2022aefa - Transient (non-detection)

AT 2022aefa (Canis Major) AT 2022aefa (Type: unk) discovered 2022-12-30.595 UT by Gaia Alias: Gaia23aae Discovery Magnitude 16.26 (G-Gaia Filter) Apparently hostless blue transient Gaia, 2022-12-30 14:17, mag 16.26 Gaia, 2022-12-31 16:05, mag 16.45 Gaia, 2023-01-01 02:19, mag 16.62 Gaia, 2023-01-01 04:05, mag 16.54 Gaia, 2023-01-01 22:06, mag 16.72 Gaia, 2023-01-02 10:07, mag 16.80 Gaia, 2023-01-03 02:21, mag 16.88 Gaia, 2023-01-03 14:21, mag 16.96  ( TNS 2022aefa | Gaia23aae )

AT 2022aefa - 2024-11-18 (T+688.5d) Image below (2024-11-18.086) was taken 688.5 days after discovery of 2022aefa Position of earlier transient (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +16.5 (Clear Filter) Poor quality image (bright, uneven background)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-18 02:12 UT (#1271136-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022aefa on Transients 2022 Page >>

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AT 2024zck - CV Type Transient

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AT 2024aaaj - Type YSO? Transient

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AT 2024aasb - Type YSO? Transient

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CGCG 182-071 - Galaxy (PGC 29248) with Type Ia Supernova 2023emd

CGCG 182-071 with SN 2023emd (Leo Minor) SN 2023emd (Type: Ia) discovered 2023-04-02.259 UT by ZTF Alias: ZTF23aaeeawl, Gaia23bkm Discovery Magnitude 18.32 (r-ZTF filter) SN in galaxy MCG+06-22-068 Gaia, 2023-04-05 03:17:30, Mag +17.60  ( TNS 2023emd | Gaia23bkm )

CGCG 182-071 with SN 2023emd - 2024-11-18 (T+595.8d) Image below (2024-11-18.018) was taken 595.8 days after discovery of 2023emd Position of earlier SN (no longer visible) is indicated by white cross-hairs.

Annotated CCD Image (175% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-18 00:35 UT (#1271104-08) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023emd (in CGCG 182-071) on Supernova 2023 Page >>

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IC 415 - Spiral Galaxy with Type II Supernova 2023yzv (non-detection)

IC 415 with SN 2023yzv (Lepus) SN 2023yzv (Type: II) discovered 2023-12-05.502 UT by ATLAS Alias: PS23lmf, ZTF23abscvhv, ATLAS23wfr Discovery Magnitude 16.74 (w-P1 Filter)  ( TNS 2023yzv )

IC 415 with SN 2023yzv - 2024-11-18 (T+348.5d) Image below (2024-11-18.041) was taken 348.5 days after discovery of 2023yzv Position of earlier SN (no longer visible) is indicated by white cross-hairs.

Annotated CCD Image (125% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-18 01:02 UT (#1271130-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023yzv (in IC 415) on Supernova 2023 Page >>

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LEDA 1762640 - Galaxy with Transient AT 2024ety (non-detection)

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LEDA 2078778 - Galaxy with Type Ia Supernova 2024xqe

LEDA 2078778 with SN 2024xqe (Triangulum) SN 2024xqe (Type: Ia) discovered 2024-10-09.466 UT by PS1 Alias: PS24jlp, ZTF24ablssfw Discovery Magnitude 19.93 (g-P1 Filter) Type: SN Ia,  Redshift: z=0.034  ( TNS 2024xqe )

LEDA 2078778 with SN 2024xqe - 2024-11-17 (T+39.5d) Image below (2024-11-17.965) was taken 39.5 days after discovery of 2024xqe Position of reported supernova (faint) is shown by white cross-hairs Measured Magnitude +15.47 (Clear Filter) - SN + Nucleus Poor quality image (bright sky background)

Annotated CCD Image (175% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-17 23:14 UT (#1271083-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

LEDA 2078778 with SN 2024xqe - Earlier Image, 2024-10-24 (T+15.5d) Image below (2024-10-24.996) was taken 15.5 days after discovery of 2024xqe Position of reported supernova (distinct) is shown by white cross-hairs Measured Magnitude +15.43 (Clear Filter)

Annotated CCD Image (175% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-10-25 00:01 UT (#1259097-101) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024xqe (in LEDA 2078778) on Supernova 2024 Page >>

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MRK 0628 - Galaxy with Type Ia Supernova 2024aakr

MRK 0628 with SN 2024aakr (Cancer) SN 2024aakr (Type: Ia) discovered 2024-11-01.428 UT by ZTF Alias: ZTF18aclkbxr Discovery Magnitude 16.3 ( Clear Filter)  ( TNS 2024aakr )

MRK 0628 with SN 2024aakr - 2024-11-18 (T+16.7d) Image below (2024-11-18.110) was taken 16.7 days after discovery of 2024aakr Position of reported SN (not separately distinguishable) is indicated by white cross-hairs. Measured Magnitude +14.64 (Clear Filter),  Nucleus + SN (vs  PGC 24859 catalog mag  +16.0)

Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2024-11-18 02:39 UT (#1271149) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024aakr (in MRK 0628) on Supernova 2024 Page >>

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SN 2024vcs - Type II Supernova in SDSS Galaxy

SN 2024vcs (Cancer) Alias: In SDSS J084826.56+144000.3 SN 2024vcs (Type: II) discovered 2024-09-08.511 UT by ZTF Alias: ZTF24abgoksi Discovery Magnitude 15.81 (r-ZTF Filter)  ( TNS 2024vcs )

SN 2024vcs - 2024-11-18 (T+70.5d) Image below (2024-11-18.003) was taken 70.5 days after discovery of 2024vcs Position of reported SN (not visible) is indicated by white cross-hairs. Non-Detection Limiting Magnitude +17.5 (Clear Filter) Poor quality image (bright uneven sky background)

Annotated CCD Image (100% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-18 00:08 UT (#1271096-97) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024vcs on Supernova 2024 Page >>

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