David's Astronomy Pages Images - Session 1274 (2024-11-22)

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Session Notes

Jupiter - Planet     C/2023 A3 (Tsuchinshan-ATLAS) - Comet     AT 2022hsd - CV Type Transient AT 2023tod - Transient AT 2023tod - Transient AT 2023xvp - Transient  (non-detection) AT 2024emc - CV Type Transient AT 2024vtr - CV Type Transient AT 2024wqf - Type AGN Transient (4C 27.50) AT 2024aapb - CV Type Transient     Abell 55 - Planetary Nebula (PLN 33-5.1) LEDA 1390871 - Galaxy with Type Ia Supernova 2024xxq M33 - Spiral Galaxy with Type Nova Transient AT 2024abqt MRK 0628 - Galaxy with Type Ia Supernova 2024aakr     NGC 6742 - Planetary Nebula (Abell 50) NGC 6891 - Planetary Nebula     SN 2023esp - Type IIn Supernova in WISEA Galaxy SN 2024xqt - Type Ia Supernova     UGCA 281 - Galaxy (PGC 40665)       - LEDA 1846725 w/SN2024iss, UGCA 113 attempts failed (due to cloud)      Variable Stars (photometric monitoring) - U And, TT Ari, U Gem, RZ LMi, ER UMa     Nearby Stars (astrometric monitoring) - DX Cnc

- Attempted all night session (8.2 hrs) ended earlier by deterorating conditions and cloud. Cold night (-5.5°C min). warm front came through at 06:00, temperatures jumped from -5 to +5°C in aroun 20 mins.     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: -5.5°C (min) - CCD Temperature: -30°C - Notes from 2024-11-22 >>     - Aurora Images from night, 2024-11-22/23  >>

Observing Result

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Jupiter - Planet

Jupiter (passing through Taurus) Sun Distance 5.07 AU Earth Distance 4.12 AU (616.1 million km) (Ra -20.38 arcsec/hr, Dec -1.33 arcsec/hr)

Jupiter - B Band Composite built from image using two different contrast settings

CCD Image (70% size, cropped, unsharp masked) 2 x 0.2s exposure (average combine), 1x1 binning, B Filter 2024-11-22 21:06 UT (#1274103-12) 12" LX200R (at f/10.4) + ST-10XME

Jupiter with Great Red Spot (GRS) Colour Attempt using B, V & Ha filters Great Red Spot (GRS) is visible in SW quadrant (BVR Colour Image not feasible as R images (0.12s) are saturated)

CCD Image (100% size, cropped, unsharp masked) Combined Image from composited frames 2 x 0.2s exposure (average combine), 1x1 binning, B Filter 2024-11-22 21:06 UT (#1274103-12) 7 x 0.12s exposure (average combine), 1x1 binning, V Filter 2024-11-22 21:08 UT (#1274114-26) 6 x 0.2s exposure (average combine), 1x1 binning, Ha Filter 2024-11-22 21:10 UT (#1274132-40) 12" LX200R (at f/10.4) + ST-10XME

Jupiter Moons

Annotated CCD Image (70% size, linear scale) 5 x 0.2s exposure (average combine), 3x3 binning, V Filter 2024-11-22 21:05 UT (#1274094-98) 12" LX200R (at f/10.4) + ST-10XME

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C/2023 A3 (Tsuchinshan-ATLAS) - Comet

C/2023 A3 (Tsuchinshan-ATLAS) - 2024-11-22 (passing through Serpens) Sun Distance 1.33 AU (receeding) Earth Distance 1.71 AU (255.4 million km) Passing by Struve 2417 (HIP 92946 & HIP 92951)		C/2023 A3 (Tsuchinshan-ATLAS) - 2024-11-22 Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 60.76 arcsec/hr, Dec 4.00 arcsec/hr)
Annotated CCD Image (50% size, log scale) 2 x 30s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 17:41 UT (#1274006-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log scale, cropped) 10 x 30s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 17:44 UT (#1274006-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
C/2023 A3 (Tsuchinshan-ATLAS) - 2024-11-22		C/2023 A3 (Tsuchinshan-ATLAS) - 2024-11-22
False Color CCD Image (50% size, log scale) 10 x 30s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 17:44 UT (#1274006-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		False Color CCD Image (100% size, log scale, cropped) Image details as left
Images of C/2023 A3 Tsuchinshan-ATLAS on Comets 2024 Page >>

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AT 2022hsd - CV Type Transient

AT 2022hsd (Perseus) AT 2022hsd (Type: CV) discovered 2022-04-13.076 UT by Gaia Alias: Gaia22bpc Outburst in candidate CV Alerting Magnitude 16.45 (vs Historic Magnitude 18.49)  ( TNS 2022hsd, Gaia22bpc)

AT 2022hsd - 2024-11-22 (T+954.8d) Image below (2024-11-22.907) was taken 954.8 days after discovery of 2022hsd Position of earlier transient (barely visible) is shown by white circle

Annotated CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 21:54 UT (#1274156-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2022hsd - Progenitor (T+954.8d) Position of progenitor for earlier transient is shown by white cross-hairs Measured Magnitude +18.88 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 21:54 UT (#1274156-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022hsd on Transients 2022 Page >>

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AT 2023tod - Transient

AT 2023tod (Aquarius) AT 2023tod (Type: unk) discovered 2023-09-23.983 UT by GW-MMADS Alias: T202309232231038m221956 Discovery Magnitude 16.41 (g-Sloan Filter)  ( TNS 2023tod)

AT 2023tod - 2024-11-22 (T+425.8d) Image below (2024-11-22.759) was taken 425.8 days after discovery of 2023tod Position of earlier transient (distinct) is shown by white cross-hairs Measured Magnitude +14.01 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 18:22 UT (#1274026-30) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023tod on Transients 2023 Page >>

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AT 2023xvp - Transient  (non-detection)

AT 2023xvp (Lyra) AT 2023xvp (Type: unk) discovered 2023-11-15.119 UT by ZTF Alias: ZTF23abrhyiz Discovery Magnitude 15.94 (r-ZTF Filter) vs Prior Non-Detection Limiting Magnitude 20.4 (g-ZTF Filter)  ( TNS 2023xvp)

AT 2023xvp - 2024-11-22 (T+373.7d) Image below (2024-11-22.805) was taken 373.7 days after discovery of 2023xvp Position of earlier transient (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +14.01 (Clear Filter)

Annotated CCD Image (125% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 19:28 UT (#1274047-51) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023xvp on Transients 2023 Page >>

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AT 2024emc - CV Type Transient

AT 2024emc (Aquila) AT 2024emc (Type: CV) discovered 2024-03-14.760 UT by Gaia Alias: Gaia24aza Alerting Magnitude 14.11 (G-Gaia Filter) vs Historic Magnitude 14.55 +/- 0.08 SD Brightening in Gaia source  ( TNS 2024emc | Gaia24aza )

AT 2024emc - 2024-11-22 (T+253.1d) Image below (2024-11-22.820) was taken 253.1 days after discovery of 2024emc Position of earlier transient (faint but distinct) is shown by white cross-hairs Measured Magnitude +14.48 (Clear Filter) Star is most-likely returned to normal magnitude range (14.47 to 14.63, G Gaia)

Annotated CCD Image (125% size, linear scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 19:43 UT (#1274054-56) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024emc on Transients 2024 Page >>

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AT 2024vtr - CV Type Transient

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AT 2024wqf - Type AGN Transient (4C 27.50)

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AT 2024aapb - CV Type Transient

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Abell 55 - Planetary Nebula (PLN 33-5.1)

Abell 55 (Aquila) DeepSky Challenge Object - Aug 2016 Location of Abell 55 is marked by white circle  [ Deep Sky Challanges (Ast.Now) ]  [ Planetary Nebula ]

Annotated CCD Image (50% size, square root scale) 4 x 120s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 18:00 UT (#1274019-23) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Abell 55 - 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

Abell 55 - Earlier Image (Aug 2019) Image centered on Abell 55 location No sign of the Pl.Neb in a standard view

CCD Image (100% size, cropped) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2019-08-26 22:14 UT (#685049-51) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Abell 55 - Earlier Image (Aug 2019) Processed Image centered on Abell 55 location. Faint sign of the Pl.Neb is visible in centre of image (shows itself by being a little darker and less noisy than rest of image background)

Negative CCD Image (100% size, logscale, 80% gamma correction, cropped) Image details as above

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LEDA 1390871 - Galaxy with Type Ia Supernova 2024xxq

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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 - Spiral Galaxy with AT 2024abqt Cam2 Reference Image. Position of AT 2024abqt is shown by blue circle Limits of M33 Spiral Galaxy shown by white/pale blue ellipse

Annotated CMOS Image (16% size) (10s exposure, 1x1 binning) 2024-11-22 19:49 UT TS 80mm APO, ZWO ASI178MC

M33 - Spiral Galaxy with AT 2024abqt  (T+1.4d) Position of reported transient (faint) is shown by white cross-hairs

Annotated CCD Image (70% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 20:02 UT (#1274060-64) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M33 with AT 2024abqt - 2024-11-22 (T+1.4d) Image below (2024-11-22.828) was taken 1.4 days after discovery of 2024abqt Position of reported transient (faint) is shown by white cross-hairs Measured Magnitude +16.55 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 20:02 UT (#1274060-64) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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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 - 2024-11-22 (T+21.5d) Image below (2024-11-22.892) was taken 21.5 days after discovery of 2024aakr Position of reported SN (not separately distinguishable) is indicated by white cross-hairs. Measured Magnitude +14.95 (Clear Filter),  Nucleus + SN (vs  PGC 24859 catalog mag  +16.0)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-22 21:34 UT (#1274149-53) 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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NGC 6742 - Planetary Nebula (Abell 50, PLN 78+18.1)

NGC 6742 (Draco) Alias: Abell 50, PLN 78+18.1 [ Planetary Nebula ]

Annotated CCD Image (70% size, square root scale) 5 x 180s exposure (average combine), 2x2 binning, Clear Filter 2024-11-22 20:26 UT (#1274067-71) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6742 - Detail

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

NGC 6742 - Earlier Image (Nov 2013)

CCD Image (200% size, cropped) 5 x 90 sec exposure (average combine), 3x3 binning, C Filter  2013-10-12  22:07 h UT  (#548210-14) 12" LX200R  (at f/9.7) + ST-10XME

NGC 6742 - Earlier Image (Mar 2015)

CCD Image (100% size, cropped) 5 x 60 sec exposure (average combine), 3x3 binning, C Filter 2015-03-27 22:31hUT (#582207-15) 12" LX200R  (at f/10.4) + ST-10XME

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NGC 6891 - Planetary Nebula

NGC 6891 (Delphinus)  Ast. Now Deep Sky Challenge Object, Aug 2023 [ Deep Sky Challanges (Ast.Now) ]   [ Planetary Nebula ]

Annotated CCD Image (46% size, linear scale) 7 x 45s exposure (average combine), 2x2 binning, Clear Filter 2024-11-22 20:52 UT (#1274076-91) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6891 - Detail

Annotated CCD Image (150% size, log scale, cropped) 7 x 45s exposure (average combine), 2x2 binning, Clear Filter 2024-11-22 20:52 UT (#1274076-91) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6891 - Spectra

CCD Image (100% size, rotated, square root scale, cropped) 5 x 60s exposure (average combine), 2x2 binning, S Filter 2024-11-22 20:51 UT (#1274078-88) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Spectra 5 x 60s exposure (average combine), 2x2 binning, S Filter 2024-11-22 20:51 UT (#1274078-88) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6891 - Earlier Detail (Aug 2023)

Annotated CCD Image (150% size, log scale, cropped) 4 x 45s exposure (average combine), 2x2 binning, Clear Filter 2023-08-06 22:32 UT (#1126013-21) 12" LX200R  (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6891 - Earlier Spectra (Aug 2023)

CCD Image (100% size, rotated, square root scale, cropped) 3 x 60s exposure (average combine), 2x2 binning, S Filter 2023-08-06 22:30 UT (#1126012-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6891 - Earlier Image (2018)

CCD Image (100% size, cropped) 7 x 30 sec exposure (average combine), 3x3 binning, C Filter 2018-07-26 01:30 UT (#616165-71) 12" LX200R  (at f/10.4) + ST-10XME

NGC 6891 - Earlier Image (2017)

Annotated CCD Image (50% size) 2 x 30s exposure (average combine), 3x3 binning, C Filter 2017-11-02 19:41h UT (#603096-98) 12" LX200R  (at f/10.4) + ST-10XME

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SN 2023esp - Type IIn Supernova in WISEA Galaxy

SN 2023esp (Gemini)  In WISEA Galaxy J064653.96+153548.2 SN 2023esp (Type: IIn) discovered 2023-04-09.253 UT by ATLAS Alias: ATLAS23hjb, ZTF23aaekwbn Discovery Magnitude 17.43 (orange-ATLAS Filter)  ( TNS 2023vyl )

SN 2023esp - 2024-11-23 (T+593.8d) Image below (2024-11-23.041) was taken 593.8 days after discovery of 2023esp Position of earlier SN (not visible) is indicated by white cross-hairs. Host galaxy is also not visible in this image

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-11-23 01:08 UT (#1274257-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SN 2023esp - Earlier Image, 2023-11-09 (T+213.8d) Image below (2023-11-09.049) was taken 213.8 days after discovery of 2023esp Position of earlier reported SN (very faint ?) is indicated by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-11-09 01:16 UT (#1163179-81) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023esp (in WISEA Galaxy) on Supernova 2023 Page >>

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SN 2024xqt - Type Ia Supernova

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UGCA 281 - Galaxy (PGC 40665)

UGCA 281 (Canes Venatici) Alias: PGC 40665 Catalog mag +15.4  [ UGCA Galaxies ]  Poor quality image.  (Altitude: 23.2°, Airmass: 2.53)

Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2024-11-22 23:43 UT (#1274212) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGCA 281 - Earlier Image (Feb 2024) Poor quality image (single frame)

Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2024-02-13 00:25 UT (#1184106) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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