David's Astronomy - Images 2025-04-07 (S1312)

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Images - Session 1312 (2025-04-07)

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Objects Session Notes

C/2023 V4 (Camarasa-Duszanowicz) - Comet (non-detection)

AT 2022pix - CV Type Transient, V1113 Cyg

AT 2022wyp - Transient (non-detection)

AT 2023yvv - CV Type Transient

AT 2023acim - Type YSO? Transient

AT 2024dyk - Type YSO Transient

AT 2024rbf - Type CV? Transient (non-detection)

AT 2025fbc - CV Type Transient (non-detection)

AT 2025ghv - Type CV? Transient

DDO 142 - Spiral Galaxy with Type Ia-02cx Supernova 2023zgx (non-detection)

MCG +9-31-13 - Galaxy with Type Ia-91T Supernova 2023hsb (non-detection)

NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw

UGC 10058 - Spiral Galaxy with Type II Supernova 2025gvs

Realtime Pictures from Current/Latest Session >>

Variable Stars (photometric monitoring)

- Z And, CM Cvn, R CrB, T CrB, U Gem, BL Lac,

Nearby Stars (astrometric monitoring)

- None

- All-Night Session (7.2 hr)

- 12" LX200 + ST-10XME for imaging

- TS 80mm APO + ZWO ASI178MC for guiding & imaging

- Ambient Temperature: 1.5°C (min)

- CCD Temperature: -20°C

- Notes from 2025-04-07 >>

-

Observing Result

C/2023 V4 (Camarasa-Duszanowicz) - Comet (non-detection)

C/2023 V4 (Camarasa-Duszanowicz) - 2025-04-08 (passing through Ophiuchus) Sun Distance 4.23 AU (receeding) Earth Distance 3.59 AU (537.2 million km) Expected Position of comet (not visible) is shown by white circle		C/2023 V4 (Camarasa-Duszanowicz) - 2025-04-08 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -23.52 arcsec/hr, Dec -4.48 arcsec/hr) Expected Position of comet (not visible) is shown by white circle

Annotated CCD Image (50% size, square root scale) 7 x 90s exposure (average combine), 3x3 binning, Clear Filter 2025-04-08 02:02 UT (#1312157-63) 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 C/2023 V4 (Camarasa-Duszanowicz) on Comets 2024 Page >>

AT 2022pix - CV Type Transient, V1113 Cyg

AT 2022pix (Cygnus)
AT 2022pix (Type: CV) discovered 2022-07-20.812 UT by Gaia
Alias: Gaia22dad
Alerting magnitude 13.95 (g-Gaia Filter)
vs Historic magnitude 17.72 +/- 1.81
& Normal Magnitude 19.3 +/- 0.6
Outburst in known Outburst in known CV V1113 Cyg
( TNS 2022pix | Gaia22dad )

AT 2022pix - 2025-04-08 (T+992.2d)
Image below (2025-04-08.009) was taken 992.2 days after discovery of 2022pix
Position of earlier transient (very faint/barely visible) is shown by white cross-hairs
Estimated Magnitude +19.0 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2025-04-08 00:17 UT (#1312122-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2022pix - Earlier Image, 2024-08-10 (T+752.2d)
Image below (2024-08-10.991) was taken 752.2 days after discovery of 2022pix
Position of reported transient (distinct, in outburst) is shown by white cross-hairs
Measured Magnitude + 14.29 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2024-08-10 23:50 UT (#1226034-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022pix on Transients 2022 Page >>

AT 2022wyp - Transient (non-detection)

AT 2022wyp (Hercules)
AT 2022wyp (Type: unk) discovered 2022-10-01.131 UT by ZTF
Alias: ZTF22abjllzm
Discovery Magnitude 17.01 (g-ZTF Filter)
vs previous non-detection with 20.75 limiting mag
( TNS 2022wyp )

AT 2022wyp - 2025-04-08 (T+920.0d)
Image below (2025-04-08.125) was taken 920.0 days after discovery of 2022wyp
Position of earlier transient (not visible) is shown by white circle

Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-08 03:07 UT (#1312190-93)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2022wyp - 2025-04-08 (T+920.0d)
Image below (2025-04-08.125) was taken 920.0 days after discovery of 2022wyp
Position of earlier transient (not visible) is shown by white cross-hairs

Annotated CCD Image (175% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-08 03:07 UT (#1312190-93)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022wyp on Transients 2022 Page >>

AT 2023yvv - CV Type Transient

AT 2023yvv (Cepheus)
AT 2023yvv (Type: CV) discovered 2023-12-04.978 UT by MASTER
Alias: MASTER OT J220107.41+573515.3
Discovery Magnitude 14.20 (Clear Filter)
vs Prior Non-Detection with Limiting Mag 19.4
Simbad indicates that this is a Mira type variable
( TNS 2023yvv )

AT 2023yvv - 2025-04-08 (T+490.0d)
Image below (2025-04-08.001) was taken 490.0 days after discovery of 2023yvv
Position of reported transient (faint, stable ?) is shown by white cross-hairs
Measured Magnitude +14.07 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2025-04-08 00:04 UT (#1312115-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023yvv on Transients 2023 Page >>

AT 2023acim - Type YSO? Transient

AT 2023acim (Cygnus)
AT 2023acim (Type: YSO?) discovered 2023-12-30.252 UT by Gaia
Alias: Gaia24abc
Alerting Magnitude 16.27 (G-Gaia Filter)
vs Historic Magnitude 15.18 +/- 0.07 SD
1 mag dimming in candidate YSO SPICY 109306
( TNS 2023acim | Gaia24abc )

AT 2023acim - 2025-04-08 (T+464.8d)
Image below (2025-04-08.023) was taken 464.8 days after discovery of 2023acim
Position of earlier transient (faint, brighter than T+276.6d) is shown by white cross-hairs
Measured Magnitude +14.85 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-08 00:38 UT (#1312131-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2023acim - Earlier Image, 2024-10-01 (T+276.6d)
Image below (2024-10-01.810) was taken 276.6 days after discovery of 2023acim
Position of reported transient (faint) is shown by white cross-hairs
Measured Magnitude +15.65 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2024-10-01 19:35 UT (#1249010-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023acim on Transients 2023 Page >>

AT 2024dyk - Type YSO Transient

AT 2024dyk (Cepheus)
AT 2024dyk (Type: YSO) discovered 2024-03-03.476 UT by Gaia
using Gaia Spacecraft Telescope
Alias: Gaia24avc
Alerting Magnitude 14.59 (G-Gaia Filter)
vs Historic Magnitude 13.32 +/- 0.17
1.3 mag dimming in Herbig Ae/Be star (YSO)
( TNS 2024dyk | Gaia24avc )

AT 2024dyk - 2025-04-07 (T+400.5d)
Image below (2025-04-07.969) was taken 400.5 days after discovery of 2024dyk
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +12.01 (Clear Filter)
Star is likely in its nornal state (13.0 to 13.5, Gaia, G-Gaia Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-07 23:24 UT (#1312065-69)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024dyk on Transients 2024 Page >>

AT 2024rbf - Type CV? Transient (non-detection)

AT 2024rbf (Ophiuchus)
AT 2024rbf (Type: CV?) discovered 2024-08-03.840 UT by XOSS
Alias: KATS24P001, TCP J18191108+1153408
Discovery Magnitude 15.85 (Clear Filter)
CV candidate classified by XOSS
( TNS 2024rbf )

AT 2024rbf - 2025-04-08 (T+247.2d)
Image below (2025-04-08.035) was taken 247.2 days after discovery of 2024rbf
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.5 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-08 00:57 UT (#1312136-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024rbf on Transients 2024 Page >>

AT 2025fbc - CV Type Transient (non-detection)

AT 2025fbc (Hercules)
AT 2025fbc (Type: CV) discovered 2025-03-20.918 UT by XOSS
Alias: KATS25F020, TCP J18453198+2349289
Alerting Magnitude 16.25 (Clear Filter)
CV candidate classified by XOSS
( TNS 2025fbc )

AT 2025fbc - 2025-04-08 (T+18.2d)
Image below (2025-04-08.069) was taken 18.2 days after discovery of 2025fbc
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.3 (Clear Filter)

Annotated CCD Image (125% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-08 01:46 UT (#1312151-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2025fbc on Transients 2025 Page >>

AT 2025ghv - Type CV? Transient

AT 2025ghv (Gemini)
AT 2025ghv (Type: CV?) discovered 2025-03-31.589 UT by XOSS
Alias: PSP25H, TCP J06455595+1210577
Discovery Magnitude 14.88 (Clear Filter)
( TNS 2025ghv )

AT 2025ghv - 2025-04-07 (T+7.3d)
Image below (2025-04-07.872) was taken 7.3 days after discovery of 2025ghv
Position of reported transient (faint) is shown by white cross-hairs
Estimated Magnitude +16.2 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-07 21:05 UT (#1312006-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2025ghv on Transients 2025 Page >>

DDO 142 - Spiral Galaxy with Type Ia-02cx Supernova 2023zgx (non-detection)

DDO 142 with SN 2023zgx (Virgo)
SN 2023zgx (Type: Ia-02cx) discovered 2023-12-09.826 UT by Koichi Itagaki
using 0.6-m F/5.7 Telescope + CCD (KAF-1001E)
Alias: ZTF23absjgta, Gaia23dqd
Discovery Magnitude 16.9 (Clear Filter)
Confirmed SN Iax[02cx-like]
( TNS 2023zgx | Gaia23dqd )

DDO 142 - Spiral Galaxy
Alias : PGC 42868 (catalog mag +13.1)
Other galaxy in same FOV :
PGC 1040745 (catalog mag +16.1)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-07 22:40 UT (#1312050-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

DDO 142 - Detail
Image below (2025-04-08.094) was taken 12.3 days after discovery of 2025fvw
Position of reported supernova (distinct, fading ?) is shown by white cross-hairs
Measured Magnitude +13.75 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-08 02:22 UT (#1312166-69)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

DDO 142 with SN 2023zgx - 2025-04-07 (T+485.1d)
Image below (2025-04-07.938) was taken 485.1 days after discovery of 2023zgx
Position of earlier supernova (faded & no longer visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.2 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-07 22:40 UT (#1312050-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023zgx (in DDO 142) on Supernova 2023 Page >>

MCG +9-31-13 - Galaxy with Type Ia-91T Supernova 2023hsb (non-detection)

MCG +9-31-13 with SN 2023hsb (Draco)
SN 2023hsb (Type: Ia-91T) discovered 2023-05-08.530 UT by ATLAS
Alias: ATLAS23kbx, ZTF23aaizygy
Discovery Magnitude 16.92 (orange-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 19.19
( TNS 2023hsb )

MCG +9-31-13 with SN 2023hsb - 2025-04-07 (T+700.4d)
Image below (2025-04-07.908) was taken 700.4 days after discovery of 2023hsb
Position of earlier supernova (faded & no longer visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.9 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-07 21:57 UT (#1312036-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023hsb (in MCG +9-31-13) on Supernova 2023 Page >>

NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw

NGC 5957 with SN 2025fvw (Serpens)
SN 2025fvw (Type: Ia) discovered 2025-03-26.799 UT by Koichi Itagaki
using XingLong Telescope
Alias: ZTF25aaktqzg, GOTO25bhh, PS25avu, ATLAS25dcd
Discovery Magnitude 17.4 (Clear Filter)
( TNS 2025fvw )

NGC 5957 with SN 2025fvw - 2025-04-08 (T+12.2d)
Image below (2025-04-08.051) was taken 12.2 days after discovery of 2025fvw
Position of reported supernova (distinct, brightening, peak) is shown by white cross-hairs
Measured Magnitude +13.70 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-08 01:21 UT (#1312143-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 5957 with SN 2025fvw - 2025-04-08 (T+12.3d)
Image below (2025-04-08.094) was taken 12.3 days after discovery of 2025fvw
Position of reported supernova (distinct, fading ?) is shown by white cross-hairs
Measured Magnitude +13.75 (Clear Filter)

SN 2025fvw - Light Curve

Images of SN 2025fvw (in NGC 5957) on Supernova 2025 Page >>

UGC 10058 - Spiral Galaxy with Type II Supernova 2025gvs

UGC 10058 with SN 2025gvs (Corona Borealis)
SN 2025gvs (Type: II) discovered 2025-04-05.502 UT by ATLAS
Alias: ATLAS25dpm
Discovery magnitude 17.59 (cyan-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 17.7
( TNS 2025gvs)

UGC 10058 with SN 2025gvs - 2025-04-07 (T+2.4d)
Image below (2025-04-07.924) was taken 2.4 days after discovery of 2025gvs
Position of reported supernova (distinct, brightening) is shown by white cross-hairs
Measured Magnitude +16.38 (Clear Filter)

Annotated CCD Image (175% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-04-07 22:20 UT (#1312043-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2025gvs (in UGC 10058) on Supernova 2025 Page >>

C/2023 V4 (Camarasa-Duszanowicz) - Comet (non-detection)

C/2023 V4 (Camarasa-Duszanowicz) - 2025-04-08 (passing through Ophiuchus) Sun Distance 4.23 AU (receeding) Earth Distance 3.59 AU (537.2 million km) Expected Position of comet (not visible) is shown by white circle		C/2023 V4 (Camarasa-Duszanowicz) - 2025-04-08 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -23.52 arcsec/hr, Dec -4.48 arcsec/hr) Expected Position of comet (not visible) is shown by white circle

Annotated CCD Image (50% size, square root scale) 7 x 90s exposure (average combine), 3x3 binning, Clear Filter 2025-04-08 02:02 UT (#1312157-63) 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 C/2023 V4 (Camarasa-Duszanowicz) on Comets 2024 Page >>

This Web Page:	Images - Session 1312 (2025-04-07)
Last Updated :	2025-04-11
Site Owner :	David Richards
Home Page :	David's Astronomy Web Site

David's Astronomy Pages Images - Session 1312 (2025-04-07)

Observing Result

C/2023 V4 (Camarasa-Duszanowicz) - Comet (non-detection)

AT 2022pix - CV Type Transient, V1113 Cyg

AT 2022wyp - Transient (non-detection)

AT 2023yvv - CV Type Transient

AT 2023acim - Type YSO? Transient

AT 2024dyk - Type YSO Transient

AT 2024rbf - Type CV? Transient (non-detection)

AT 2025fbc - CV Type Transient (non-detection)

AT 2025ghv - Type CV? Transient

DDO 142 - Spiral Galaxy with Type Ia-02cx Supernova 2023zgx (non-detection)

MCG +9-31-13 - Galaxy with Type Ia-91T Supernova 2023hsb (non-detection)

NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw

UGC 10058 - Spiral Galaxy with Type II Supernova 2025gvs

C/2023 V4 (Camarasa-Duszanowicz) - Comet (non-detection)

David's Astronomy Pages
Images - Session 1312 (2025-04-07)