David's Astronomy Pages Images - Session 1277 (2024-11-27)

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Session Notes

Gliese 65 - Nearby Star (Luyten 726-8, UV Cet)  (8.7 ly) TZ Cas - Variable Star (Type EA variable, eclipsing binary)     AT 2022fkp - CV Type Transient  (non-detection) AT 2024accj - Type AGN Transient     IC 1898 - Spiral Galaxy (UGCA 56, PGC 11851) M33 - Spiral Galaxy with Type Nova Transient AT 2024abqt MCG -1-33-30 - Irregular Galaxy with Type II Supernova 2024byg     NGC 599 - Elliptical Galaxy NGC 681 - Spiral Galaxy with Type Ic-BL Supernova 2024abup     PGC 2121 - Dwarf Spheroidal Galaxy (Andromeda III), Local Group - 2.9 mly PGC 4728 - Galaxy (ARP 88, VV 445)     UGCA 15 - Irregular Galaxy (PGC 2902) UGCA 67 - Spiral Galaxy (PGC 12664) UGCA 73 - Elliptical Galaxy (PGC 12922) UGCA 77 - Spiral Galaxy (PGC 13122)       - UGCA 5 attempt failed (due to cloud)      Variable Stars (photometric monitoring) - TV Cas,  SS Cyg, Hat-P-3, T CrB     Nearby Stars (astrometric monitoring) - Giliese 65

- All night session (11.3 hrs).     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -1.5°C (min) - CCD Temperature: -25°C - Notes from 2024-11-27 >>     -

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 (46% size, linear scale) 7 x 30s exposure (average combine), 2x2 binning, Clear Filter 2024-11-27 22:30 UT (#1277087-93) 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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TZ Cas - Variable Star (Type EA variable, eclipsing binary)

GCVS TV Cas (Cassiopeia) Alias HIP 1550 Period 1.8125913d, mag 7.22 to 8.22

GCVS TV Cas (V Filter)

Annotated CCD Image (70% size, linear scale) 3 x 4s exposure (average combine), 3x3 binning, V Filter 2024-11-27 21:06 UT (#1277056-60) 12" LX200R (at f/10.4) + ST-10XME

GCVS TV Cas (R Filter)

Annotated CCD Image (70% size, linear scale) 3 x 3s exposure (average combine), 3x3 binning, R Filter 2024-11-27 21:06 UT (#1277057-61) 12" LX200R (at f/10.4) + ST-10XME

GCVS TV Cas through V Filter - Earlier Image (2019-02-17) TV Cas: mag 7.22 to 8.22, V Mag +7.27,  B-V 0.06 C1 (HIP 1428),  V Mag +7.72, B- V -0.05 K1 (GSC 3665:26), Mag +9.05 K2  (GSC 3665:628), Mag 11.19

Annotated CCD Image (70% size) 5 x 4s exposure (average combine), 3x3 binning, V Filter 2019-02-17 19:18 UT (#664040-44) 12" LX200R (at f/10.4) + ST-10XME

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AT 2022fkp - CV Type Transient  (non-detection)

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AT 2024accj - Type AGN Transient

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IC 1898 - Spiral Galaxy (UGCA 56, PGC 11851)

IC 1898 (Eridanus) Alias: UGCA 56, PGC 11851 (catalog mag +13.7 or +12.9)  [ UGCA Galaxies ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-27 22:49 UT (#1277102-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 1898 / UGCA 56 - Detail

Annotated CCD Image (125% size, square root scale, cropped) Image details as above

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M33 - Spiral Galaxy with Type Nova Transient AT 2024abqt

M33 with AT 2024abqt (Triangulum) AT 2024abqt (Type: Nova) discovered 2024-11-21.408 UT by ATLAS Alias: ATLAS24qiq Discovery Magnitude 16.09 (orange-ATLAS Filter)  ( TNS 2024sgd )

M33 with AT 2024abqt - 2024-11-27 (T+6.5d) Image below (2024-11-27.862) was taken 6.5 days after discovery of 2024abqt Position of reported transient (faint) is shown by white cross-hairs Measured Magnitude +17.35 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-27 20:49 UT (#1277049-53) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024abqt (in M33) on Transients 2024 Page >>

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MCG -1-33-30 - Irregular Galaxy with Type II Supernova 2024byg

MCG -1-33-30 with SN 2024byg (Virgo) SN 2024byg (Type: II) discovered 2024-02-08.550 UT by ASAS-SN Alias: ASASSN-24ax Discovery Magnitude 16.3 ( Clear Filter)  ( TNS 2024byg )

MCG -1-33-30 with SN 2024byg - 2024-11-28 (T+293.7d) Image below (2024-11-28.215) was taken 293.7 days after discovery of 2024byg Position of earlier SN (not visible) is indicated by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-28 05:19 UT (#1277456-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

MCG -1-33-30 with SN 2024byg - Earlier Image, 2024-02-21 (T+12.5d) Image below (2024-02-21.035) was taken 12.5 days after discovery of 2024byg Position of reported SN (faint but distinct) is indicated by white cross-hairs. Measured Magnitude +15.90  (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-02-21 01:00 UT (#1187122-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024byg (in MCG -1-33-30) on Supernova 2024 Page >>

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NGC 599 - Elliptical Galaxy

NGC 599 (Cetus) This is not ARP 4

NGC 599 - Elliptical Galaxy Other galaxies in FOV are :  PGC 73980 (catalog mag 16.4),  PGC 3093506 (catalog mag 16.3)

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-27 22:12 UT (#1277080-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 599 - Detail

Annotated CCD Image (125% size, square root scale, cropped) Image details as above

NGC 599 - Earlier Image (Aug 2019) Image likely shows an artefact associated with a dust motte ?

CCD Image (100% size, log scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2019-08-26 03:14 UT (#684125-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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NGC 681 - Spiral Galaxy with Type Ic-BL Supernova 2024abup

NGC 681 with SN 2024abup (Cetus) SN 2024abup (Type: Ic-BL) discovered 2024-11-22.351 UT by ATLAS Alias: ATLAS24qlf, Gaia24dsy Discovery Magnitude 17.02 (cyan-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 19.48 Confirmed SN Ic-BL  ( TNS 2024abup | Gaia24dsy )

NGC 681 with SN 2024abup - 2024-11-27 (T+5.6d) Image below (2024-11-27.958) was taken 5.6 days after discovery of 2024abup Position of reported SN (faint but distinct) is indicated by white cross-hairs. Estimated Magnitude +16.0 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-27 23:09 UT (#1277109-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024abup (in NGC 681) on Supernova 2024 Page >>

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PGC 2121 - Dwarf Spheroidal Galaxy (Andromeda III), Local Group - 2.9 mly

PGC 2121 (Cassiopeia) Andromeda III (LG) And III, wasn't discovered until by Sidney van der Bergh found it on photographic plates taken in 1970 and 1971 with the Palomar 48-inch (1.2-meter) Schmidt telescope  [ Local Group Galaxies ] Position of PGC 2121 / Andromeda III ( faintly visible) is shown by white circle 30 minute exposure

Annotated CCD Image (100% size, square root scale, cropped) 5 x 300s exposure (average combine), 3x3 binning, Clear Filter 2024-11-27 21:26 UT (#1277064-68)` 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 2121 / And III -  Earlier Image (Nov 2020) Galaxy signal is too faint to be seen over the background sky noise Target requires a future attempt with longer exposure under the darkest possible skies.

CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2020-11-22 21:57 UT (#832074-78) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 (compare with And III reference image at spider.seds.org )

PGC 2121 / And III -  Earlier Image (2009) Galaxy (position circled) is too faint to be seen

CCD Image ( cropped) 4 x 120s exposure (average combine), 3x3 binning, I Filter 2009-12-26 20:01h UT (#408248-52) 12" LX200R  (at f/5.7) + ST-10XME

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PGC 4728 - Galaxy (ARP 88, VV 445)

PGC 4728 (Pisces) Alias: ARP 88 (Spiral with HSB Companion on arm)  VV 445 [ ARP Galaxies ]   [ Vorontsov-Velyaminov Galaxies ] Other galaxies in same FOV are  ARP 119 - PGC 4750 (catalog mag +15.2) + PGC 4748 (catalog mag +15.9) and  PGC 73921 (catalog mag +16.6),  PGC 1410939 (catalog mag +16.8)

Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-27 21:51 UT (#1277072-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PGC 4728 / ARP 88 - Detail

Annotated CCD Image (175% size, square root scale, cropped) Image details as above

Negative CCD Image (175% size, square root scale, cropped) Image details as above

PGC 4728 - Earlier Image (2024-11-26) Poor quality image.  Target to be rescheduled

Annotated CCD Image (125% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-26 22:52 UT (#1276108-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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UGCA 15 - Irregular Galaxy (PGC 2902)

UGCA 15 (Cetus) Alias: PGC 2902 (catalog mag +15.2)  [ UGCA Galaxies ] Position of UGCA 15 (barely visible) is shown by white circle Poor quality image - Reschedule for a future session

Annotated CCD Image (50% size, square root scale) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-27 20:29 UT (#1277044-46) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGCA 15 - Detail UGCA 15 is just about visible in detailed image below, but barely so

Annotated CCD Image (125% size, square root scale, cropped) Image details as above

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UGCA 67 - Spiral Galaxy (PGC 12664)

UGCA 67 (Eridanus) Alias: PGC 12664 (catalog mag +14.5)  [ UGCA Galaxies ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-27 23:32 UT (#1277116-20) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGCA 67 - Detail

Annotated CCD Image (125% size, square root scale, cropped) Image details as above

Negative CCD Image (125% size, square root scale, cropped) Image details as above

UGCA 67 - Earlier Image (2024-11-26) UGCA 67 is just about visible in image below, but barely so Poor quality image (poor sky transparency, single frame)

Annotated CCD Image (125% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2024-11-26 23:40 UT (#1276130) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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UGCA 73 - Elliptical Galaxy (PGC 12922)

UGCA 73 (Eridanus) Alias: PGC 12922 (catalog mag +15.0) Dec -17d 25m  [ UGCA Galaxies ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-27 23:53 UT (#1277123-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGCA 73 - Detail

Annotated CCD Image (150% size, square root scale, cropped) Image details as above

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UGCA 77 - Spiral Galaxy (PGC 13122)

UGCA 77 (Eridanus) Alias: PGC 13122 (catalog mag +15.8)  [ UGCA Galaxies ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-28 00:18 UT (#1277132-36) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGCA 77 - Detail

Annotated CCD Image (125% size, square root scale, cropped) Image details as above

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