David's Astronomy Pages Images - Session 1441 (2026-07-26)

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Image (S1442)

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Session Notes

AT 2023acib - Type YSO? Transient AT 2026lck - Type Nova Transient AT 2026lcz - Type LPV Transient  (non-detection)   IC 5191 - Spiral Galaxy with Type Ia Supernova 2026myp   NGC 5907 - Spiral Galaxy with Type II Supernova 2026kid NGC 6934 - Globular Cluster (H 1-103)   UGC 11058 - Spiral Galaxy with Type Ia Supernova 2026ewd   Variable Stars (photometric monitoring) - T CrB, CI Cyg, AM Her, BL Lac, CY Lyr   Nearby Stars (astrometric monitoring) - 61 Cyg

- All-Night Session (4.0 hr) - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 7.5°C (min) - CCD Temperature:  -10°/-15°C - Notes from 2026-07-26 >> - -

Observing Result

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AT 2023acib  - Type YSO? Transient

AT 2023acib (Draco) AT 2023acib (Type: YSO?) discovered 2023-12-30.850 UT by Gaia Alias: Gaia24aan Discovery Magnitude 16.15 (G-Gaia Filter) vs Prior Non-Detection Limiting Magnitude 21.5 (G-Gaia Filter) Gaia Alerting Magnitude 16.15 vs Historic Magnitude 15.04 +/- 0.21 SD Candidate YSO dims by over 1 mag ( TNS 2023acib | Gaia24aan )

AT 2023acib - 2026-07-26 (T+939.1d) Image below (2026-07-26.974) was taken 939.1 days after discovery of 2023acib Position of earlier transient (distinct) is shown by white cross-hairs Measured Magnitude +14.78 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 4 x 120s exposure (average combine), 3x3 binning, Clear Filter 2026-07-26 23:27 UT (#1441028-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2023acib on Transients 2023 Page  >>

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AT 2026lck  - Type Nova Transient

AT 2026lck (Aquila) AT 2026lck (Type: Nova) discovered 2026-04-24.413 UT by ZTF Alias: DCAP32, ZTF26aatyimr Discovery Magnitude 15.89 (i-ZTF Filter) vs Prior Non-Detection Limiting Magnitude ( Filter) Group reports the discovery of a candidate dwarf nova.(DCAP pipeline DCAP32=ZTF26aatyimr) ASASSN-17cf associated with the target. ( TNS 2026lck )

AT 2026lck - 2026-07-27 (T+93.6d) Image below (2026-07-27.059) was taken 93.6 days after discovery of 2026lck Position of earlier transient (faint) is shown by white cross-hairs Measured Magnitude +17.30 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-07-27 01:33 UT (#1441102-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026lck on Transients 2026 Page  >>

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AT 2026lcz  - Type LPV Transient  (non-detection)

AT 2026lcz (Sagitta) AT 2026lcz (Type: LPV) discovered 2026-04-30.292 UT by MASTER Alias: MASTER OT J192144.27+175308.5 Discovery Magnitude 15.4 (Other- Filter) vs Prior Non-Detection Limiting Magnitude 18.5 (Other- Filter) long variable, in history:m=14.0 at 2021-10-29 01:49:43 ( TNS 2026lcz )

AT 2026lcz - 2026-07-27 (T+87.7d) Image below (2026-07-27.006) was taken 87.7 days after discovery of 2026lcz Position of earlier transient (not separately distinguishable) is shown by white cross-hairs.

Annotated CCD Image (150% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-07-27 00:17 UT (#1441059-63) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026lcz on Transients 2026 Page  >>

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IC 5191  - Spiral Galaxy with Type Ia Supernova 2026myp

IC 5191 with SN 2026myp (Lacerta) SN 2026myp (Type: Ia) discovered 2026-05-17.575 UT by ATLAS Alias: ATLAS26fxq, ZTF26aawrmyb Discovery Magnitude 17.878 (cyan-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 16.46 (orange-ATLAS Filter) ( TNS 2026myp )

IC 5191 with SN 2026myp - 2026-07-27 (T+70.5d) Image below (2026-07-27.045) was taken 70.5 days after discovery of 2026myp Position of earlier supernova (not visible) is shown by white cross-hairs Measured Magnitude +19.1 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-07-27 01:14 UT (#1441095-99) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026myp (in IC 5191) on Supernovae 2026 Page  >>

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NGC 5907  - Spiral Galaxy with Type II Supernova 2026kid

NGC 5907 with SN 2026kid (Draco) SN 2026kid (Type: II) discovered 2026-04-22.600 UT by Yasuo Sano Alias: ATLAS26equ, ZTF26aatswhm Discovery Magnitude 16.62 (Clear- Filter) vs Prior Non-Detection Limiting Magnitude 19 (Clear- Filter) SCT 0.36-m F/11 reflector + FLI ML1001E CCD, Nayoro Hokkaido Japan ( TNS 2026kid )

NGC 5907 with SN 2026kid - 2026-07-26 (T+95.3d) Image below (2026-07-26.949) was taken 95.3 days after discovery of 2026kid Position of earlier supernova (faint) is shown by white cross-hairs Estimated Magnitude +16.7 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-07-26 22:52 UT (#1441011-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026kid (in NGC 5907) on Supernovae 2026 Page  >>

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NGC 6934  - Globular Cluster (H 1-103)

NGC 6934 (Delphinus) Alias: H 1-103 Repeat in Detail, Deep Sky Challenge object, AstNow Sep 2023 [ Globular Star Clusters ]

Annotated CCD Image (70% size, square root scale) 11 x 45s exposure (average combine), 2x2 binning, Clear Filter 2026-07-27 00:38 UT (#1441066-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6934 - Detail

Annotated CCD Image (92% size, log scale) 11 x 45s exposure (average combine), 2x2 binning, Clear Filter 2026-07-27 00:38 UT (#1441066-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Annotated negative CCD Image (92% size, log scale) 11 x 45s exposure (average combine), 2x2 binning, Clear Filter 2026-07-27 00:38 UT (#1441066-80) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 6934 - Earlier Image (Aug 2023)

CCD Image (100% size, log scale, cropped) 4 x 30s exposure (average combine), 2x2 binning, Clear Filter 2023-08-19 22:22 UT (#1131046-57) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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UGC 11058  - Spiral Galaxy with Type Ia Supernova 2026ewd

UGC 11058 with SN 2026ewd (Hercules) SN 2026ewd (Type: Ia) discovered 2026-03-05.583 UT by ATLAS Alias: ATLAS26cph, GOTO26bqj, ZTF26aajugdc Discovery Magnitude 17.346 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 19.52 (cyan-ATLAS Filter) ( TNS 2026ewd )

UGC 11058 with SN 2026ewd - 2026-07-26 (T+143.4d) Image below (2026-07-26.965) was taken 143.4 days after discovery of 2026ewd Position of earlier supernova (faint) is shown by white cross-hairs Estimated Magnitude +17.7 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-07-26 23:13 UT (#1441024-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026ewd (in UGC 11058) on Supernovae 2026 Page  >>

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