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Images - Session 1336 (2025-06-26)
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Objects Session Notes
AT 2025lc - CV Type Transient Variable Stars (photometric monitoring) - T CrB, CY Lyr Nearby Stars (astrometric monitoring) - None
- Post midnight session (1.3 hr). Short summer night. Session ended early due to cloud. - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature : 9.5°C (min) - CCD Temperature: -10°/-15°C - Notes from 2025-06-26 >> -
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AT 2025lc (Cygnus) AT 2025lc (Type: CV) discovered 2025-01-10.553 UT by Gaia Alias: Gaia25add Alerting Magnitude 14.48 (G-Gaia Filter) vs Historic Magnitude 15.89 +/- 0.61 SD Outburst in candidate CV ( TNS 2025lc | Gaia25add ) |
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AT 2025lc - 2025-06-26 (T+167.4d) Image below (2025-06-26.992) was taken 167.4 days after discovery of 2025lc Position of earlier transient (very faint, fading) is shown by white cross-hairs Measured Magnitude +16.51 (Clear Filter) |
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Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2025-06-26 23:51 UT (#1336012-16) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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AT 2025lc - Earlier Image, 2025-03-15 (T+63.5d) Image below (2025-03-15.080) was taken 63.5 days after discovery of 2025lc Position of earlier transient (faint) is shown by white cross-hairs Measured Magnitude +13.69 (Clear Filter) Appears to be either still be in outburst (from Jan 10th) or has started a new outburst. |
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Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2025-03-15 01:58 UT (#1301164-68) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2025lc on Transients 2025 Page >> |
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| This Web Page: | Images - Session 1336 (2025-06-26) |
| Last Updated : | 2025-06-30 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
