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Images - Session 1424 (2026-04-19)
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Objects Session Notes
KIC 8462852 - Variable Star (Tabby's Star, Boyajian's Star, WTF Star) AT 2026jcv - CV Type Transient (non-detection) M107 - Globular Cluster (Crucifix Cluster) PCG 0939+1240 - Compact Galaxy Group - AT2026fkw, AT2026jyw attempt failed (due to cloud) Variable Stars (photometric monitoring) - SY Cnc, KIC 8462852 (Tabby's Star) Nearby Stars (astrometric monitoring) - None
- Attempted All-Night Session (6.1 hr) interrupted by cloud and shower - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 3°C (min) - CCD Temperature: -20°C - Notes from 2026-04-19 >> - -
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KIC 8462852 (Cygnus)
Alias: Tabby's Star, Boyajian's Star, WTF Star Star shows large irregular dimmings. 1470 ly. Mag +11.7 |
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Position of earlier transient (distinct) is shown by white cross-hairs Measured Magnitude +11.88 (Clear Filter) |
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Annotated CCD Image (100% size, linear scale, cropped)
3 x 60s exposure (average combine), 3x3 binning, V Filter 2026-04-20 02:39 UT (#1424047-49) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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AT 2026jcv (Ophiuchus)
AT 2026jcv (Type: CV) discovered 2026-04-09.864 UT by XOSS Alias: KATS26G002 Discovery Magnitude 16.87 (Clear- Filter) vs Prior Non-Detection Limiting Magnitude ( Filter) Cataclysmic variable candidate classified by XOSS. Details can be found at http://xjltp.china-vo.org/kats26g002.html ( TNS 2026jcv ) |
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AT 2026jcv - 2026-04-20 (T+10.2d)
Image below (2026-04-20.076) was taken 10.2 days after discovery of 2026jcv Position of earlier transient (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +17.3 (Clear Filter) |
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Annotated CCD Image (100% size, linear scale, cropped)
60s exposure (single frame), 3x3 binning, Clear Filter 2026-04-20 01:49 UT (#1424041) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2026jcv on Transients 2026 Page >> |
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M107 (Ophiuchus)
Alias: Crucifix Cluster [ Common Name Objects ] [ Globular Star Clusters ] [ Messier Objects ] |
| M107 - Globular Cluster |
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Annotated CCD Image (50% size, square root scale)
9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-04-20 01:37 UT (#1424029-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| M107 - Globular Cluster |
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Annotated CCD Image (70% size, square root scale)
9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-04-20 01:37 UT (#1424029-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| M107 - Earlier Image (May 2005) |
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CCD Image
7 x 60s (median combine), clear filter 2005-05-13 23:31 h UT (#86169-75) 8" LX200 Classic + ST-7E |
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PCG 0939+1240 (Leo)
Palomar Compact Galaxy Catalogue, radius 49 arcsec, mag 15.0 [ PCG Groups ] |
| PCG 0939+1240 - Compact Galaxy Group |
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Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-04-19 21:22 UT (#1424011-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| PCG 0939+1240 - Detail |
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Annotated CCD Image (150% size, square root scale, cropped)
Image details as above |
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Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-04-19 21:22 UT (#1424011-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| PCG 0939+1240 (Leo) |
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Annotated negative CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-04-19 21:22 UT (#1424011-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| This Web Page: | Images - Session 1424 (2026-04-19) |
| Last Updated : | 2026-04-23 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |