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Images - Session 1331 (2025-06-01)
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C/2023 C2 (ATLAS) - Comet NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw Variable Stars (photometric monitoring) - T CrB, BL Lac, CY Lyr Nearby Stars (astrometric monitoring) - None
- Post midnight session (1.9 hr). Short Summer Night - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature : 8°C (min) - CCD Temperature: -15°C - Notes from 2025-06-01 >> -
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| C/2023 C2 (ATLAS) - 2025-06-02 (passing through Andromeda) Sun Distance 3.19 AU Earth Distance 3.44 AU (514.3 million km) |
C/2023 C2 (ATLAS) - 2025-06-02 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 26.44 arcsec/hr, Dec 49.16 arcsec/hr) Poor quality image (bright uneven sky background) |
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| Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2025-06-02 01:12 UT (#1331039-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (125% size, square root scale, cropped) Image details as left |
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| Images of C/2023 C2 (ATLAS) on Comets 2025 Page >> |
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NGC 5957 with SN 2025fvw (Serpens) |
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NGC 5957 with SN 2025fvw - 2025-06-02 (T+67.2d) Image below (2025-06-02.029) was taken 67.2 days after discovery of 2025fvw Position of reported supernova (fading) is shown by white cross-hairs Measured Magnitude +16.09 (Clear Filter) |
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Annotated CCD Image (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-06-02 00:51 UT (#1331031-35) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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NGC 5957 with SN 2025fvw - Earlier Image, 2025-04-08 (T+12.2d) Image below (2025-04-08.051) was taken 12.2 days after discovery of 2025fvw Position of reported supernova (distinct, brightening, peak) is shown by white cross-hairs Measured Magnitude +13.70 (Clear Filter) |
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Annotated CCD Image (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-04-08 01:21 UT (#1312143-47) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| SN 2025fvw - Light Curve |
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| Images of SN 2025fvw (in NGC 5957) on Supernova 2025 Page >> |
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| This Web Page: | Images - Session 1331 (2025-06-01) |
| Last Updated : | 2025-06-04 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
