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Objects Session Notes
C/2019 T4 (ATLAS) - Comet C/2023 E1 (ATLAS) - Comet M33 - Spiral Galaxy with Transient AT 2023nou - M101 w/SN2023ixf attempt failed (due to bad guiding / poor sky transparency).
- NGC 2326 w/AT2023pgb atttempted failed(due to cloud)Variable Stars (photometric monitoring) - None Nearby Stars (astrometric monitoring) - None
- Attempted all night session (3.3 hrs), interupted by and ended early due to cloud. - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 15.5°C (min) - CCD Temperature: -10° C - Notes from 2023-08-21 >>
C/2019 T4 (ATLAS) - 2023-08-21 (passing through Serpens) Sun Distance 5.54 AU (receeding) Earth Distance 5.69 AU (850.6 million km) |
C/2019 T4 (ATLAS) - 2023-08-21 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 16.50 arcsec/hr, Dec -9.39 arcsec/hr) |
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Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-21 22:29 UT (#1133026-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (100% size, square root scale, cropped) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-08-21 22:29 UT (#1133026-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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Images of C/2019 T4 (ATLAS) on Comets 2023 Page >> |
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C/2023 E1 (ATLAS) - 2023-08-21 pm (passing through Pegasus) Sun Distance 1.32 AU (receeding) Earth Distance 0.38 AU (56.7 million km) |
C/2023 E1 (ATLAS) 2023-08-21 pm, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 51.47 arcsec/hr, Dec -319.39 arcsec/hr) |
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Annotated CCD Image (50% size, square root scale) 45s exposure (single frame), 3x3 binning, Clear Filter 2023-08-21 22:01 UT (#1133005) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (100% size, square root scale, cropped) 15 x 45s exposure (average combine), 3x3 binning, Clear Filter 2023-08-21 22:07 UT (#1133005-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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Images of C/2023 E1 (ATLAS) on Comets 2023 Page >> |
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M33 with AT 2023nou (Triangulum) |
M33 with AT 2023nou - 2023-08-22 (T+32.6d) Image below (2023-08-22.035) was taken 32.6 days after discovery of 2023nou Position of reported transient (faint) is shown by whiIte cross-hairs Measured Magnitude +16.82 |
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Annotated CCD Image (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-08-22 00:56 UT (#1133050-52) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Unusual Light Trail (Satellite ?) passing across M33 The amplitude of wiggles along trail (up to 15 pixels / 21 arc secs) is far greater than can be explained by Telescope's Periodic Error on telescope or by Seeing |
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Annotated CCD Image (125% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2023-08-22 00:54 UT (#1133051) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of AT 2023nou (in M33) on Transients 2023 Page >> |
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This Web Page: | Images - Session 1133 (2022-08-21) |
Last Updated : | 2024-06-15 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |