David's Astronomy - Images 2024-12-24 (S1287)

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Images - Session 1287 (2024-12-24)

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Objects Session Notes

Jupiter - Planet

C/2022 E2 (ATLAS) - Comet

C/2023 A3 (Tsuchinshan-ATLAS) - Comet

AT 2023aanv - CV Type Transient

AT 2024dyj - Type YSO? Transient

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

AT 2024xpy - Type BL Transient (non-detection)

AT 2024aasb - Type YSO? Transient

AT 2024acem - CV Type Transient (non-detection)

AT 2024aasb - Type YSO? Transient

AT 2024aelh - CV Type Transient

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

NGC 1275 - Spiral Galaxy with Type IIP Supernova 2024xav (non-detection)

SN 2024aeey - Type Ia Supernova

UGC 604 - Spiral Galaxy with Type II Supernova 2024advj

UGC 1325 - Elliptical Galaxy with Type Ia Supernova 2024aedt

- NGC 681 w/SN2024abup attempt failed (due to cloud)
- NGC 2182 attempt failed (due to ghost image & cloud)

Variable Stars (photometric monitoring)

- RX And, BL Lac, RR Tau,

Nearby Stars (astrometric monitoring)

- HH And, Groombridge 34, Teegardens Star

- Evening Session (6.1 hr). Session ended when cloud arrived

- 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 2024-12-24 >>

-

Observing Result

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
Great Red Spot (GRS) is visible in SW quadrant

CCD Image (70% size, cropped, unsharp masked)
15 x 0.2s exposure (average combine), 1x1 binning, B Filter
2024-12-24 22:34 UT (#1287134-48)
12" LX200R (at f/10.4) + ST-10XME

Jupiter with Great Red Spot (GRS)
Colour Attempt using B, V & Ha filters
(Note Ha is used for R chanel as R filter images (0.12s) are saturated)

CCD Image (100% size, cropped, unsharp masked)
Combined Image from composited frames
15 x 0.2s exposure (average combine), 1x1 binning, B Filter
2024-12-24 22:34 UT (#1287134-48)
15 x 0.12s exposure (average combine), 1x1 binning, V Filter
2024-12-24 22:36 UT (#1287149-63)
13 x 0.5s exposure (average combine), 1x1 binning, Ha Filter
2024-12-24 22:38 UT (#1287166-78)

12" LX200R (at f/10.4) + ST-10XME

Jupiter Moons
Note: Callisto (beyond right edge) lies outside of FOV

Annotated CCD Image (70% size, linear scale)
5 x 0.2s exposure (average combine), 3x3 binning, V Filter
2024-12-24 22:33 UT (#1287129-33)
12" LX200R (at f/10.4) + ST-10XME

C/2022 E2 (ATLAS) - Comet

C/2022 E2 (ATLAS) - 2024-12-24 (passing through Cassiopeia) Sun Distance 3.78 AU (receeding) Earth Distance 3.11 AU (465.7 million km)		C/2022 E2 (ATLAS) - 2024-12-24 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -146.00 arcsec/hr, Dec -40.42 arcsec/hr)

Annotated CCD Image (50% size, square root scale) 2 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-12-24 19:42 UT (#1287036-37) 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) 5 x 90s exposure (average combine), 3x3 binning, Clear Filter 2024-12-24 19:45 UT (#1287036-40) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of C/2022 E2 (ATLAS) on Comets 2023 Page >>
Images of C/2022 E2 (ATLAS) on Comets 2024 Page >>

C/2023 A3 (Tsuchinshan-ATLAS) - Comet

C/2023 A3 (Tsuchinshan-ATLAS) - 2024-12-24 (passing through Aquila) Sun Distance 1.86 AU (receeding) Earth Distance 2.58 AU (385.7 million km)		C/2023 A3 (Tsuchinshan-ATLAS) - 2024-12-24 Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 36.95 arcsec/hr, Dec 10.70 arcsec/hr) Poor quality image (single frame only)

Annotated CCD Image (50% size, square root scale) 30s exposure (single frame), 3x3 binning, Clear Filter 2024-12-24 18:17 UT (#1287005) 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) 30s exposure (single frame), 3x3 binning, Clear Filter 2024-12-24 18:17 UT (#1287005) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of C/2023 A3 Tsuchinshan-ATLAS on Comets 2024 Page >>

AT 2023aanv - CV Type Transient

AT 2023aanv (Cygnus)
AT 2023aanv (Type: CV) discovered 2023-12-19.681 UT by MASTER
Alias: MASTER OT J202117.51+304929.2
Discovery Magnitude 12.20 (Clear Filter)
vs Prior Non-Detection with Limiting Mag 18.9
Mira type variable in max
( TNS 2023aanv )

AT 2023aanv - 2024-12-24 (T+371.2d)
Image below (2024-12-24.847) was taken 371.2 days after discovery of 2023aanv
Position of reported transient (slightly brightening again ?) is shown by white cross-hairs
Measured Magnitude +14.29 (Clear Filter)
Poor quality image (due to poor seeing, FWHM 5.5" )

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 20:22 UT (#1287052-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2023aanv - Earlier Image 2023-12-26 (T+7.1d)
Image below (2023-12-26.742) was taken 7.1 days after discovery of 2023aanv
Position of reported transient (distinct) is shown by white cross-hairs
Measured Magnitude +12.65 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-12-26 17:51 UT (#1177019-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023aanv on Transients 2023 Page >>

AT 2024dyj - Type YSO? Transient

AT 2024dyj (Cepheus)
AT 2024dyj (Type: YSO?) discovered 2024-03-03.475 UT by Gaia
Alias: Gaia24avb
Discovery magnitude 16.16 (G-Gaia Filter)
vs Historic Magnitude 14.97 +/- 0.14 SD
1.2 mag dimming in candidate YSO
( TNS 2024dyj | Gaia24avb )

AT 2024dyj - 2024-12-24 (T+296.3d)
Image below (2024-12-24.781) was taken 296.3 days after discovery of 2024dyjj
Position of reported transient (faint but distinct) is shown by white cross-hairs
Measured Magnitude +13.80 (Clear Filter)
Star has likely returned to its normal magnitude level (14.97 G-Gaia Filter)
Poor quality image (due to poor seeing, FWHM 5.0" )

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 18:53 UT (#1287015-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024dyj on Transients 2024 Page >>

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

AT 2024wqf (Pegasus)
AT 2024wqf (Type: AGN) discovered 2024-09-24.205 UT by MASTER
Alias: MASTER OT J232159.82+273246.9, 4C 27.50
Discovery Magnitude 13.7 (Clear Filter)
( TNS 2024wqf | 4C 27.50 (Simbad) )
[ AGN ]

AT 2024wqf - 2024-12-24 (T+91.6d)
Image below (2024-12-24.795) was taken 91.6 days after discovery of 2024wqf
Position of reported transient (fading) is shown by white cross-hairs
Measured Magnitude +16.00 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 19:13 UT (#1287022-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2024wqf - Earlier Image 2024-10-01 (T+6.8d)
Image below (2024-10-01.005) was taken 6.8 days after discovery of 2024wqf
Position of reported transient (distinct) is shown by white cross-hairs
Measured Magnitude +14.16 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-01 00:10 UT (#1248133-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024wqf on Transients 2024 Page >>

AT 2024xpy - Type BL Transient (non-detection)

AT 2024xpy (Hercules)
AT 2024xpy (Type: BL) discovered 2024-10-04.838 UT by Gaia
Alias: Gaia24cvy
Discovery Magnitude 16.17 (G-Gaia Filter)
vs Historic Magnitude 17.28 +/- 0.29 SD
Brightening in known BL Lac
BL Lac type object 2FGL J1844.3+1548
( TNS 2024xpy | Gaia24cvy | Simbad 2FGL J1844.3+1548 )

AT 2024xpy - 2024-12-24 (T+80.9d)
Image below (2024-12-24.765) was taken 80.9 days after discovery of 2024xpy
Position of reported transient (very faint or not visible) is shown by white cross-hairs
Poor quality image (due to poor seeing, FWHM >5.0" )

Annotated CCD Image (100% size, linear scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2024-12-24 18:22 UT (#1287008)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024xpy on Transients 2024 Page >>

AT 2024aasb - Type YSO? Transient

AT 2024aasb (Camelopardalis)
AT 2024aasb (Type: YSO?) discovered 2024-11-03.961 UT by Gaia
Alias: Gaia24dfc
Alerting Magnitude 15.09 (G-Gaia Filter)
vs Historic Magnitude 16.24 +/- 0.41 SD
Historic Range 15.51 to 17.87 (2014-2024)
Brightening in candidate YSO
( TNS 2024aasb | Gaia24dfc )

AT 2024aasb - 2024-12-24 (T+51.0d)
Image below (2024-12-24.993) was taken 51.0 days after discovery of 2024aasb
Position of reported transient (barely visible) is shown by white cross-hairs
Limiting Magnitude +18.3 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-12-25 00:00 UT (#1287223-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2024aasb - Earlier Image, 2024-11-17 (T+14.0d)
Image below (2024-11-17.917) was taken 14.0 days after discovery of 2024aasb
Position of reported transient (faint) is shown by white cross-hairs
Measured Magnitude +15.51 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2024-11-17 22:01 UT (#1271073)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024aasb on Transients 2024 Page >>

AT 2024acem - CV Type Transient (non-detection)

AT 2024acem (Andromeda)
AT 2024acem (Type: CV) discovered 2024-11-25.654 UT by XOSS
Alias: KATS24W006, TCP J00205034+3628247
Discovery Magnitude 15.52 (Clear Filter)
( TNS 2024acem )

AT 2024acem - 2024-12-24 (T+29.2d)
Image below (2024-12-24.810) was taken 29.2 days after discovery of 2024acem
Position of reported transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.8 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 19:29 UT (#1287029-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024acem on Transients 2024 Page >>

AT 2024aelh - CV Type Transient

AT 2024aelh (Perseus)
AT 2024aelh (Type: CV) discovered 2024-12-18.802 UT by Gaia
Alias: Gaia24dsb
Alerting Magnitude 16.23 (G-Gaia Filter)
vs Historic Magnitude 17.70 +/- 0.43 SD
Brightening in erratic Gaia source
( TNS 2024aelh | Gaia24dsb )

AT 2024aelh - 2024-12-24 (T+6.1d)
Image below (2024-12-24.924) was taken 6.1 days after discovery of 2024aelh
Position of reported transient (faint) is shown by white cross-hairs
Measured Magnitude +15.99 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 22:14 UT (#1287111-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024aelh on Transients 2024 Page >>

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 )

Nova M31 2024-11b? - 2024-12-24 (T+40.8d)
Image below (2024-12-24.877) was taken 40.8 days after discovery of Nova M31 2024-11b?
Position of reported transient (not separately distinguishable) is shown by white cross-hairs
Measured Magnitude +11.69 (Clear Filter), Star + Transient

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 21:11 UT (#1287088-92)
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 >>

NGC 1275 - Spiral Galaxy with Type IIP Supernova 2024xav (non-detection)

NGC 1275 with SN 2024xav (Perseus)
SN 2024xav (Type: IIP) discovered 2024-09-30.036 UT by GOTO
Alias: GOTO24gor, ATLAS24otv
Discovery Magnitude 18.63 (L-GOTO Filter)
vs Prior Non-Detection Limiting Magnitude 19.2
( TNS 2024xav )

NGC 1275 with SN 2024xav - 2024-12-24 (T+85.9d)
Image below (2024-12-24.908) was taken 85.9 days after discovery of 2024xav
Position of reported supernova (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.6 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 21:56 UT (#1287104-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1275 with SN 2024xav - Earlier Image, 2024-10-05 (T+5.9d)
Image below (2024-10-05.981) was taken 5.9 days after discovery of 2024xav
Position of reported supernova (faint) is shown by white cross-hairs
Estimated Magnitude +16.5 (Clear Filter)
(Note : SN 2024xav is labelled as AT 2024xav here)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-05 23:42 UT (#1251051-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024xav (in NGC 1275) on Supernovae 2024 Page >>

UGC 604 - Spiral Galaxy with Type II Supernova 2024advj

UGC 604 with SN 2024advj (Andromeda)
SN 2024advj (Type: II) discovered 2024-12-11.191 UT by ATLAS
Alias: ATLAS24riq, ZTF24abxpkhb, Gaia24dqw
Discovery Magnitude 17.87 (g-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude 20.20
Confirmed SN II (Gaia)
Gaia, 2024-12-13 13:08, mag 16.63
( TNS 2024advj | Gaia24dqw )

UGC 604 with SN 2024advj - 2024-12-24 (T+13.8d)
Image below (2024-12-24.979) was taken 13.8 days after discovery of 2024advj
Position of earlier SN (faint, but distinct) is shown by white cross-hairs
Measured Magnitude +15.55 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 23:37 UT (#1287215-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024advj (in UGC 604) on Supernova 2024 Page >>

UGC 1325 - Elliptical Galaxy with Type Ia Supernova 2024aedt

UGC 1325 with SN 2024aedt (Pisces)
SN 2024aedt (Type: Ia) discovered 2024-12-16.375 UT by ATLAS
Alias: ATLAS24rks, ZTF24abxzhim
Discovery Magnitude 18.55 (orange-ATLAS Filter)
( TNS 2024aedt )

UGC 1325 with SN 2024aedt - 2024-12-24 (T+8.6d)
Image below (2024-12-24.956) was taken 8.6 days after discovery of 2024aedtj
Position of earlier SN (faint) is shown by white cross-hairs
Measured Magnitude +16.44 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 23:02 UT (#1287190-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024aedt (in UGC 1325) on Supernova 2024 Page >>

SN 2024aeey - Type Ia Supernova

AT 2024aeey (Draco)
AT 2024aeey (Type: unk) discovered 2024-12-15.090 UT by Gaia
Alias: Gaia24dri, GOTO25fy, ATLAS25ake
Discovery Magnitude 15.56 (G-Gaia Filter)
Candidate SN near PanSTARRS galaxy
( TNS 2024aeey | Gaia24dri )

SN 2024aeey - 2024-12-24 (T+9.7d)
Image below (2024-12-24.831) was taken 9.7 days after discovery of 2024aeey
Position of reported supernova (distinct) is shown by white cross-hairs
Measured Magnitude +15.62 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-12-24 20:05 UT (#1287045-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2024aeey on Supernova 2024 Page >>

This Web Page:	Images - Session 1287 (2024-12-24)
Last Updated :	2025-03-21
Site Owner :	David Richards
Home Page :	David's Astronomy Web Site

David's Astronomy Pages Images - Session 1287 (2024-12-24)