David's Astronomy Pages Images - Session 1451 (2026-09-09)

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Images (S1452)

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Session Notes

Nova Aql 2026 - Nova (AT 2026rdg)   M31 - Spiral Galaxy with Type FeII Transient AT 2026aabo M31 - Spiral Galaxy with Transient AT 2026vdo  (non-detection)   NGC 7293 - Nebula NGC 7331 - Spiral Galaxy with Type Ia Supernova 2026aaiv   PCG 0045+1940 - Compact Galaxy Group   SHK 82 - Faint Galaxy Group   Variable Stars (photometric monitoring) - RX And, T CrB, CI Cyg, AM Her, BL Lac   Nearby Stars (astrometric monitoring) - None

- Attempted All-Night Session (4.7 hr) ended early due cloud - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 9°C (min) - CCD Temperature:  -15°C - Notes from 2026-09-09 >> - -

Observing Result

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Nova Aql 2026  - Nova (AT 2026rdg)

Nova Aql 2026 (Aquila) Discovery Magnitude 12.53 (r-ZTF Filter) vs Prior Non-Detection Limiting Magnitude (r-ZTF Filter) Group reports the discovery of a candidate nova.(DCAP238=ZTF26abemjfk) https://dcap-minruining.github.io/DCAP/ Image taken with SQA130mm, Luminance 200sx3. ( TNS 2026rdg ) [ Novae ]

Nova Aql 2026 (Nova) - 2026-09-09 (T+70.6d) Image below (2026-09-09.890) was taken 70.6 days after discovery of 2026rdg Position of earlier transient (distinct) is shown by white cross-hairs Measured Magnitude +14.57 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-09-09 21:18 UT (#1451032-36) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Nova Aql 2026 - Spectra Image 2026-09-09 (T+70.6d)

CCD Image (linear scale, rotated, cropped) 3 x 90s exposure (average combine), 2x2 binning, S Filter 2026-09-09 21:23 UT (#1451037-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Nova Aql 2026 - Spectra 2026-09-09 (T+70.6d)

Images of Nova Aql 2026 on Novae 2026 Page  >>

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M31  - Spiral Galaxy with Type FeII Transient AT 2026aabo

M31 with AT 2026aabo (Andromeda) AT 2026aabo (Type: FeII) discovered 2026-08-29.395 UT by ATLAS Alias: ZTF26abramlb, ATLAS26kqn Discovery Magnitude 18.5784 (g-ZTF Filter) vs Prior Non-Detection Limiting Magnitude 20.8339 (g-ZTF Filter) ( TNS 2026aabo ) [ Messier Objects ]

M31 with AT 2026aabo - 2026-09-09 (T+11.5d) Image below (2026-09-09.897) was taken 11.5 days after discovery of 2026aabo Position of earlier transient ( ) is shown by white cross-hairs Measured Magnitude +17.13 (Clear Filter)

Annotated CCD Image (125% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-09 21:40 UT (#1451043-47) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026aabo (in M31 AT2026aabo) on Transients 2026 Page  >>

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M31  - Spiral Galaxy with Transient AT 2026vdo  (non-detection)

M31 with AT 2026vdo (Andromeda) AT 2026vdo (Type: unk) discovered 2026-07-20.081 UT by Robert Fidrich Alias: Vend85, PNV J00425536+4117270 Discovery Magnitude 17.7 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 19.2 (Clear Filter) Róbert Fidrich and Tamás Tordai (HAA/VSS) report the discovery of a new astronomical transient. Discovered using 2x90s co-added images made with a 0.43 m Dall-Kirkham telescope at Alnitak Remote Observatory, Sierra del Segura, Spain, with Luminance filter. More info: https://vendegcsillagkereso.blogspot.com/2026/07/vend85-quite-bright-possible-nova-in-m31. html The discovery was made using the Alnitak Remote Observatories robotic telescope network, ARTA program. ( TNS 2026vdo ) [ Messier Objects ]

M31 with AT 2026vdo - 2026-09-09 (T+51.9d) Image below (2026-09-09.975) was taken 51.9 days after discovery of 2026vdo Position of earlier transient (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +17.0 (Clear Filter)

Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-09 23:33 UT (#1451072-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026vdo (in M31 AT2026vdo) on Transients 2026 Page  >>

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NGC 7293  - Nebula

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NGC 7331  - Spiral Galaxy with Type Ia Supernova 2026aaiv

NGC 7331 with SN 2026aaiv (Pegasus) SN 2026aaiv (Type: Ia) discovered 2026-09-01.475 UT by ATLAS Alias: ATLAS26krw Discovery Magnitude 17.325 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 18.87 (orange-ATLAS Filter) ( TNS 2026aaiv )

NGC 7331 with SN 2026aaiv - 2026-09-10 (T+8.5d) Image below (2026-09-10.003) was taken 8.5 days after discovery of 2026aaiv Position of earlier supernova (distinct) is shown by white cross-hairs Measured Magnitude +12.50 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-10 00:14 UT (#1451092-96) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026aaiv (in NGC 7331) on Supernovae 2026 Page  >>

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PCG 0045+1940  - Compact Galaxy Group

PCG 0045+1940 (Pisces) Palomar Compact Galaxy Catalogue, radius 22 arcsec, mag 15.8 [ PCG Groups ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-09 22:02 UT (#1451051-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

PCG 0045+1940 - Detail

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

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

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

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SHK 82  - Faint Galaxy Group

SHK 82 (Pisces) Shakhbazian Group. Size 0.9', Mag 17.7 [ Shakhbazian Groups ]

SHK 82 with adjcent galaxies PGC 195212 (catalog mag +16.6), PGC 1206592 (catalog mag +18.0)

Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-10 00:31 UT (#1451100-03) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SHK 82 - Detail

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

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