David's Astronomy - Images 2023-12-26 (S01177)

David's Astronomy Pages
Images - Session 1177 (2023-12-26)

Images
(S1176)

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Images
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Objects Session Notes

AT 2023ydp - CV Type Transient (FO Aql)

AT 2023yvv - CV Type Transient

AT 2023aanv - CV Type Transient

NGC 7466 - Spiral Galaxy with Type Ia Supernova 2023uu

NGC 7625 - Spiral Galaxy (ARP 212) with Type Ia Supernova 2023vyl

- NGC 7171 w/SN2023yoo attempt failed (due to cloud)

Variable Stars (photometric monitoring)

- BL Lac



Nearby Stars (astrometric monitoring)

- None



- Evening Session (2.5 hrs) ended early due to cloud

- 12" LX200 + ST-10XME for imaging

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

- Ambient Temperature: -1°C (min)

- CCD Temperature:   -25° C

- Notes from 2023-12-26 >>

-

AT 2023ydp - CV Type Transient (FO Aql)

AT 2023ydp (Aquila)
AT 2023ydp (Type: CV) discovered 2023-11-14.762 UT by Gaia
Alias: Gaia23det
Discovery Magnitude 13.54 (G-Gaia Filter)
vs Historic Magnitude 14.98 +/- 0.63 SD
Outburst in known CV FO Aql
( TNS 2023ydp | Gaia23det )

AT 2023ydp - 2023-12-26 (T+42.0d)
Image below (2023-12-26.726) was taken 42.0 days after discovery of 2023ydp
Position of reported transient (faint) is shown by white cross-hairs
Measured Magnitude +16.14 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-12-26 17:28 UT (#1177005-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023ydp on Transients 2023 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
( TNS 2023yvv )

AT 2023yvv - 2023-12-26 (T+21.8d)
Image below (2023-12-26.734) was taken 21.8 days after discovery of 2023yvv
Position of reported transient (faint) is shown by white cross-hairs
Measured Magnitude +14.10 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2023-12-26 17:40 UT (#1177012-16)
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 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 - 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 >>

NGC 7466 - Spiral Galaxy with Type Ia Supernova 2023uu

NGC 7466 with SN 2023uu (Pegasus)
SN 2023uu (Type: Ia, z=0.037) discovered 2023-01-15.225 UT by PS1
Alias: PS23hl, ATLAS23bat, ZTF23aaapvqs
Discovery Magnitude 20.1 (g-P1 filter)
Redshift indicates that this SN is likely a background event
and not a SN within NGC 7466
( TNS 2023uu )

NGC 7466 with SN 2023uu - 2023-12-26 (T+345.6d)
Image below (2023-12-26.808) was taken 345.6 days after discovery of 2023uu
Position of earlier SN (likely faded & no longer visible) is shown by white cross-hairs
Non-Detection, Limiting Mag +17.5 (Clear Filter)
Poor quality image (uneven sky background / poor sky transparency)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-12-26 19:33 UT (#1177045-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023uu (in NGC 7466) on Supernovae 2023 Page >>

NGC 7625 - Spiral Galaxy (ARP 212) with Type Ia Supernova 2023vyl

NGC 7625 with SN 2023vyl (Pegasus)
SN 2023vyl (Type: Ia) discovered 2023-10-28.393 UT by ATLAS
Alias: ATLAS23urs, ZTF23abnprwj
Discovery Magnitude 17.43 (orange-ATLAS Filter)
( TNS 2023vyl )

NGC 7625 with SN 2023vyl - 2023-12-26 (T+59.4d)
Image below (2023-12-26.766) was taken 59.4 days after discovery of 2023vyl
Position of reported SN (fading) is indicated by white cross-hairs.
Measured Mag +15.62 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2023-12-26 18:28 UT (#1177034-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2023vyl (in NGC 7625) on Supernova 2023 Page >>