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CCD Images - Session 937 (2021-11-24)
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Plane - Crossing M31 starfield with EGN Nova 2021aceg 132P/Helin-Roman-Alu - Comet C/2017 K2 (PANSTARRS) - Comet EGN 2021aceg - Extragalactic Nova in Spiral Galaxy M31 M110 - Elliptical Galaxy with Nova AT2021yul NGC 9 - Spiral Galaxy with Type Ib Supernova 2021zju UGC 8975 - Spiral Galaxy with Type Ia Supernova 2021adpe Variable Stars (photometric monitoring) - RX And, SS Cyg
- TT Ari attempt failed due to cloud/poor skyNearby Stars (astrometric monitoring) - None
HH And attempt failed due to cloud/poor sky
- Evening session 4.2 hours - Session ended by cloud & rain at 21:45 - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 3°C (min) - CCD Temperature: -20/-25°C - Notes from 2021-11-24 >> [ Local Files >> ]
| Plane crossing M31 starfield with Extragalactic Nova (Andromeda) |
| Whilst imaging starfield (M31 w/EGN 2021aceg) 4 linear tracks passed across the following 180s exposure. The first thought that they were representing a swarm of parallel tracking satellites but examination of AllSky Images indicates that they are from a plane |
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| CCD Image (50% size, linear scale) 180s exposure (single frame), 3x3 binning, C Filter 2021-11-24 18:27 UT (#937020) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Detailed examination of the image show details of the exhaust trail |
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| CCD Image (50% size, log scale) Image details as above |
| The lights from the plane were particularly bright. So bright that
they left residual traces in the CCD substrate in the next two 180s frames (the lines are too straight / too sharp to be exhaust trails) The trails ruined images of the target object EGN 2021aceg |
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| CCD Image (50% size, log scale) 180s exposure (single frame), 3x3 binning, C Filter 2021-11-24 18:30 UT (#937021) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| AllSky Image showing the plane crossing the telescope view (yellow cross-hairs) Object was already declining in brightness as it crossed the telescope view |
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| AllSky Image - 30s exposure (single frame) Occulus AllSky Camera |
| AllSky Image showing the plane after it had left the telescope view. The entire image shows 23 strobe light flashes in 30s (ie one flash every 1.30s) |
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| AllSky Image - 30s exposure (single frame) Occulus AllSky Camera |
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| 132P/Helin-Roman-Alu (passing through Cetus) Sun Distance 1.70 AU Earth Distance 0.92 AU (137.0 million km) |
132P/Helin-Roman-Alu - 2021-11-24, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 41.50 arcsec/hr, Dec 14.19 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2021-11-24 19:29 UT (#937067-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
CCD Image (100% size, square root scale, cropped) 7 x 60s exposure (average combine), 3x3 binning, C Filter 2021-11-24 19:29 UT (#937065-71) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of 132P/Helin-Roman-Alu on Comets 2021 Page >> |
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| C/2017 K2 (PANSTARRS) (passing through Hercules) Sun Distance 4.73 AU Earth Distance 5.39 AU (806.8 million km) |
C/2017 K2 (PANSTARRS) - 2021-11-24, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 26.94 arcsec/hr, Dec -19.80 arcsec/hr) Poor quality image due to wind vibration & single frame |
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| Annotated CCD Image (50% size, square root scale) 45s exposure (single frame), 3x3 binning, C Filter 2021-11-24 19:17 UT (#937060) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
CCD Image (100% size, square root scale, cropped) Image detail as left |
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| Images of C2017 K2 (PANSTARRS) on Comets 2021 Page >> |
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Nova 2021aceg in M31 (Andromeda) AT2021aceg (Type: EGN) discovered 2021-10-25.570 UT by XOSS Alias: PSP21ac, PNV J00473256+3938102 Discovery Magnitude 16.1 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 17.5 (Rochester Supernova site | Rochester EGN Page | Klaus Wenzel image ) ( TNS 2021aceg ) |
| Nova 2021aceg in M31 - 2021-11-24 (T+30.2d) Image below (2021-11-24.765) was taken 30.2 days after discovery of 2021aceg EGN position is shown by white cross-hairs The image is unfortunately ruined by a residual light trail left in the CCD Substrate from a plane that crossed the field of view during the previous frame |
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| Annotated CCD Image (150% size, square root scale, cropped) 180s exposure (single frame), 3x3 binning, C Filter 2021-11-24 18:30 UT (#937021) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Nova 2021aceg in M31 - Earlier Image 2021-10-31 (T+5.5d) Image below (2021-10-31.102) was taken 5.5 days after discovery of 2021aceg EGN is shown by white cross-hairs Measured magnitude +17.15 |
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| Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-31 02:36 UT (#930169-73) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of Nova AT 2021aceg (in M31) on Transients 2021 Page >> |
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M110 with AT2021yul (Andromeda) AT2021yul (Type: Nova) discovered 2021-09-13.740 UT by XOSS Alias: PSP21J, ZTF21acbutpl (Rochester Supernova site | Rochester EGN Page | |
| M110 with AT2021yul - 2021-11-24 (T+72.2d) Image below (2021-11-24.896) was taken 72.2 days after discovery of 2021yul Position of earlier Nova (no longer visible) is shown by white cross-hairs |
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| Annotated CCD Image (100% size, square root scale, cropped 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-24 21:36 UT (#937160-62) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| M110 with AT2021yul - Earlier Image 2021-09-28 (T+14.4d) Image below (2021-09-28.106) was taken 14.4 days after discovery of 2021yul Nova (faint) is shown by white cross-hairs |
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| Annotated CCD Image (100% size, square root scale, cropped 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-28 02:43 UT (#917265-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2021yul (in M110) on Transients 2021 Page >> |
| M110 Realtime Picture M110 catalog extent shown by white ellipse Position of AT2021yul shown by blue circle |
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| Realtime CCD Image (70% size, linear scale) 180s exposure (single frame), 3x3 binning, C Filter 2021-11-24 21:36 UT (#937162) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| M110 - False Colour |
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| False Colour CCD Image (70% size, square root scale) Inverse Spectrum 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-28 02:43 UT (#917265-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| NGC 9 with SN2021zju (Pegasus) SN 2021zju (Type: Ib) discovered 2021-09-24.483 UT by ATLAS Alias: ATLAS21bjbm, ZTF21acdxhuv (Rochester Supernova site | Enrico Prosperi image ) |
| NGC 9 with SN2021zju - 2021-11-24 (T+61.4d) Image below (2021-11-24.877) was taken 61.4 days after discovery of 2021zju Position of supernova (faint) is shown by white cross-hairs |
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| Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-24 21:15 UT (#937155-57) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021zju (NGC 9) on Supernovae 2021 Page >> |
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| UGC 8975 with SN 2021adpe (Canes Venatici) SN 2021adpe (Type: Type Ia, z=0.009) discovered 2021-11-04.975 UT by Gaia Alias: Gaia21fas, Mag +17.76 at discovery (Rochester Supernova site | Gaia21fas ) |
| UGC 8975 with SN 2021adpe - 2021-11-24 (T+19.8d) Image below (2021-11-24.747) was taken 19.8 days after discovery of 2021adpe Position of Candiate SN (AT2021adpe) is shown by white cross-hairs Image quality very poor due to wind vibration / poor seeing |
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| Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-11-24 18:05 UT (#937012-16) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021adpe (UGC 8975) on Supernovae 2021 Page >> |
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| This Web Page: | CCD Images - Session 937 (2021-11-24) |
| Last Updated : | 2024-06-07 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
