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Images - Session 1315 (2025-04-11)
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29P/Schwassmann-Wachmann - Comet C/2025 F2 (SWAN) - Comet NGC 5957 - Spiral Galaxy with Type Ia Supernova 2025fvw Realtime Pictures from Current/Latest Session >> Variable Stars (photometric monitoring) - T CrB Nearby Stars (astrometric monitoring) - None
- All-Night Session (7.1 hr) - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 1.5°C (min) - CCD Temperature: -15°/-20°C - Notes from 2025-04-11 >> -
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| 29P/Schwassmann-Wachmann - 2025-04-11 (passing through Leo) Sun Distance 6.27 AU (turning ?) Earth Distance 5.70 AU (852.5 million km) |
29P/Schwassmann-Wachmann - 2025-04-11 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -3.67 arcsec/hr, Dec 0.81 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 8 x 90s exposure (average combine), 3x3 binning, Clear Filter 2025-04-11 22:18 UT (#1315041-49) 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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| 29P/Schwassmann-Wachmann - Earlier Image 2025-04-09 Showing motion of comet relative to HIP 47151 over 2 day period |
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| Annotated CCD Image (50% size, square root scale) 9 x 90s exposure (median average combine), 3x3 binning, Clear Filter 2025-04-09 21:54 UT (#1313022-30) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of 29P/Schwassmann-Wachmann on Comets 2023 Page >> | ||
| Images of 29P/Schwassmann-Wachmann on Comets 2024 Page >> | ||
| Images of 29P/Schwassmann-Wachmann on Comets 2025 Page >> |
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| 29P/Schwassmann-Wachmann - 2025-04-09 (passing through Leo) Sun Distance 6.27 AU (turning ?) Earth Distance 5.67 AU (848.4 million km) |
29P/Schwassmann-Wachmann - 2025-04-09 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -4.45 arcsec/hr, Dec 1.03 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 9 x 90s exposure (median average combine), 3x3 binning, Clear Filter 2025-04-09 21:54 UT (#1313022-30) 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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| Stacked image using regular combine Image shows at least 11 satellite tracks crossing the FOV during the 13.5 minutes total exposure |
Stacked image using regular combine - Detail | |
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| Annotated CCD Image (50% size, square root scale) 9 x 90s exposure (maximum combine), 3x3 binning, Clear Filter 2025-04-09 21:54 UT (#1313022-30) 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 29P/Schwassmann-Wachmann on Comets 2023 Page >> | ||
| Images of 29P/Schwassmann-Wachmann on Comets 2024 Page >> | ||
| Images of 29P/Schwassmann-Wachmann on Comets 2025 Page >> |
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| C/2025 F2 (SWAN) - 2025-04-12 (passing through Pegasus) Sun Distance 0.62 AU (approaching) Earth Distance 1.29 AU (193.6 million km) |
C/2025 F2 (SWAN) - 2025-04-12 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 247.45 arcsec/hr, Dec 112.16 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 60s exposure (single frame), 3x3 binning, Clear Filter 2025-04-12 03:23 UT (#1315172) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (100% size, log scale, cropped) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2025-04-12 03:25 UT (#1315171-74) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| C/2025 F2 (SWAN) - 2025-04-12 Detail Highlighting the comet's thin but obvious tail |
C/2025 F2 (SWAN) - 2025-04-12 Detail Showing faint tail |
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| Negative CCD Image (50% size, square root scale) Image details as above |
Annotated CCD Image (70% size, log scale, cropped) Image details as above |
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| Images of C/2025 F2 (SWAN) on Comets 2025 Page >> |
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NGC 5957 with SN 2025fvw (Serpens) |
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NGC 5957 with SN 2025fvw - 2025-04-11 (T+16.2d) Image below (2025-04-11.993) was taken 16.2 days after discovery of 2025fvw Position of reported supernova (distinct, near peak brightness) is shown by white cross-hairs Measured Magnitude +13.74 (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 2025-04-11 23:57 UT (#1315083-86) 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 1315 (2025-04-11) |
| Last Updated : | 2025-04-12 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
