David's Astronomy Pages Images - Session 1452 (2026-09-11)

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Images (S1452)

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Session Notes

Nova Aql 2026 - Nova (AT 2026rdg)   AT 2026stb - Type Nova Transient   NGC 6070 - Spiral Galaxy with Type II Supernova 2026ejy NGC 7331 - Spiral Galaxy with Type Ia Supernova 2026aaiv   SHK 31 - Faint Galaxy Group SHK 82 - Faint Galaxy Group   UGC 242 - Spiral Galaxy with Type II Supernova 2026yum   - Nova Aql 2026 Spectra Image attempt failed (due to cloud)   Variable Stars (photometric monitoring) - T CrB, CY Lyr   Nearby Stars (astrometric monitoring) - Barnard's Star

- Attempted All-Night Session (3.2 hr) ended early by cloud and later rain. Proor sky conditions (poor sky transparency) - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 9.5°C (min) rising later in night to 12.5°C following warm front with cloud - CCD Temperature:  -10°/-15°C - Notes from 2026-09-11 >> - -

Observing Result

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Nova Aql 2026  - Nova (AT 2026rdg)

Nova Aql 2026 (Aquila) ( TNS 2026rdg ) [ Novae ]

Nova Aql 2026 (Aquila) Alias: Nova Aql 2026, AT 2026rdg, V2104 Aql AT 2026rdg (Type: Nova) discovered 2026-07-01.305 UT by ZTF Position of earlier transient (distinct) is shown by white cross-hairs Measured Magnitude +14.53 (Clear Filter) Poor quality image (poor sky transparency)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-09-11 22:06 UT (#1452053-56) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Nova Aql 2026 on Novae 2026 Page  >>

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AT 2026stb  - Type Nova Transient

AT 2026stb (Scutum) Alias: AT 2026stb AT 2026stb (Type: Nova) discovered 2026-07-08.000 UT by ZTF Discovery Magnitude 15.06 (r-ZTF Filter) vs Prior Non-Detection Limiting Magnitude (r-ZTF Filter) Group reports a CV candidate that appears red; possible nova candidate. (DCAP269=ZTF26abfokua) https://dcap-minruining.github.io/DCAP/ zr=15.06mag, zg=17.11mag, zg-zr=2.05mag Image taken with Takahashi 180mm, Luminance 120s. ( TNS 2026stb ) [ Novae ]

AT 2026stb - 2026-09-11 (T+65.9d) Image below (2026-09-11.903) was taken 65.9 days after discovery of 2026stb Position of earlier transient (distinct) is shown by white cross-hairs Measured Magnitude +13.41 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 2 x 120s exposure (average combine), 3x3 binning, Clear Filter 2026-09-11 21:43 UT (#1452043-44) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026stb on Transients 2026 Page  >>

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NGC 6070  - Spiral Galaxy with Type II Supernova 2026ejy

NGC 6070 with SN 2026ejy (Serpens) SN 2026ejy (Type: II) discovered 2026-02-25.180 UT by ATLAS Alias: GOTO26bnq, ZTF26aaiedvz, ATLAS26coa, BGEM J161000.25+004220.7 Discovery Magnitude 18.55 (L-GOTO Filter) vs Prior Non-Detection Limiting Magnitude 20.4 (L-GOTO Filter) ( TNS 2026ejy )

NGC 6070 with SN 2026ejy - 2026-09-11 (T+198.7d) Image below (2026-09-11.881) was taken 198.7 days after discovery of 2026ejy Position of earlier supernova (not distinguishable) is shown by white cross-hairs Very poor quality image (poor sky transparency, variable passing cloud)

Annotated CCD Image (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-11 21:14 UT (#1452016-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026ejy (in NGC 6070) on Supernovae 2026 Page  >>

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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 - 2026-09-11 (T+10.5d) Image below (2026-09-11.952) was taken 10.5 days after discovery of 2026aaiv Position of earlier supernova (distinct) is shown by white cross-hairs Measured Magnitude +12.35 (Clear Filter)

Annotated CCD Image (125% size, log scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-11 22:54 UT (#1452066-67) 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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SHK 31  - Faint Galaxy Group

SHK 31 (Pisces) Shakhbazian Group. Mag 17.6, Size 1', [ Shakhbazian Groups ]

Poor quality image (poor sky transparency, single frame) Target to be rescheduled for a later session

Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2026-09-11 23:43 UT (#1452084) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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SHK 82  - Faint Galaxy Group

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

SHK 82 (Pisces) Poor quality image (poor sky transparency)

Annotated CCD Image (150% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-11 23:11 UT (#1452073-74) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

SHK 82 - Earlier Image (2026-09-10) with adjacent 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

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UGC 242  - Spiral Galaxy with Type II Supernova 2026yum

UGC 242 with SN 2026yum (Pisces) SN 2026yum (Type: II) discovered 2026-08-13.092 UT by ATLAS Alias: GOTO26iei, ATLAS26jxg, ZTF26abnuyoi Discovery Magnitude 18.04 (L-GOTO Filter) vs Prior Non-Detection Limiting Magnitude 20.2 (L-GOTO Filter) ( TNS 2026yum )

UGC 242 with SN 2026yum - 2026-09-11 (T+29.9d) Image below (2026-09-11.977) was taken 29.9 days after discovery of 2026yum Position of earlier supernova (faint) is shown by white cross-hairs Measured Magnitude +16.51 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-11 23:32 UT (#1452079-81) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026yum (in UGC 242) on Supernovae 2026 Page  >>

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