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CCD Images - Session 920 (2021-10-03)
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67P/Churyumov-Gerasimenko - Comet Nova Cas 2021 - Nova (V1405 Cas) AT 2021ckv - Type YSO Transient (GCVS PR Ori) AT 2021zkf - YSO Transient, V0645 Cyg NGC 940 - Spiral Galaxy with Type Ia Supernova 2021vtl NGC 1166 - Spiral Galaxy with Type II Supernova 2021zby NGC 6184 - Spiral Galaxy with Type Ia Supernova 2021wkv NGC 6500 - Spiral Galaxy with Type Ia Supernova 2021wuf Variable Stars (photometric monitoring) - RX And, Z And, BL Lac, RR Lyr, GK Per Nearby Stars (astrometric monitoring) - HH And, Groombridge 34, Teegardens Star
- Full night Session (8.8 hours). - Clear skies all night but poor seeing and moonlit - Main aims of the session were to acquire a selection of targets including Comet 67P/Churyumov-Gerasimenko - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 12°C (min) - CCD Temperature: -10°C - Notes from 2021-10-03 >> [ Local Files >> ] -
| 67P/Churyumov-Gerasimenko - 2021-10-04 am (passing through Taurus) Sun Distance 1.26 AU (approaching) Earth Distance 0.48 AU (72.2 million km) |
67P/Churyumov-Gerasimenko - 2021-10-04 am, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 168.57 arcsec/hr, Dec 35.78 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2021-10-04 02:12 UT (#920147-48) 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) 15 x 45s exposure (average combine), 3x3 binning, C Filter 2021-10-04 02:18 UT (#920147-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of 67P/Churyumov-Gerasimenko on Comets 2021 Page >> |
| 67P/Churyumov-Gerasimenko - False Colour Image(s) Inverse Spectrum |
| 67P/Churyumov-Gerasimenko - 2021-10-04 am |
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| False Colour CCD Image (70% size, log scale) 15 x 45s exposure (average combine), 3x3 binning, C Filter 2021-10-04 02:18 UT (#920147-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Nova Cas 2021 (Cassiopeia) Nova in Cassiopeia discovered 2021-03-18.4236, by Yuji Nakamura (Japan) Magnitude at discovery +9.6 (unfiltered CCD) AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia Alias: Gaia21bpe, AT2021hkn, V1405 Cas |
| Nova Cas 2021 / AT2021hkn - 2021-10-03 (T+199.6d) Image below (2021-10-03.992) was taken 199.6 days after discovery of Nova Nova is shown by white cross hairs. Measured magnitude +7.92 Note: star object is saturated and shows some blooming, mag is probably underestimated (linked with Detection Threshold = 50) |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 30s exposure (average combine), 3x3 binning, C Filter 2021-10-03 23:50 UT (#920033-37) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Nova Cas 2021 (V1405 Cas) Spectra - 2021-10-03 (T+199.6d) |
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| Spectra produced in AstroMain using Image taken with Star Analyser
200 5 x 30s exposure (average combine), 2x2 binning, S Filter 2021-10-03 23:53 UT (#920038-42) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of Nova Cas 2021 on Novae Page >> |
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| AT 2021ckv / PR Ori (Orion) AT 2021ckv (Type: YSO) discovered 2021/02/08.759 UT by Gaia Alias: Gaia21arx, GCVS PR Ori Discovery Magnitude 12.25 (G-Gaia Filter) vs Historic Magnitude 13.75 +/- 0.67 SD Brightening in known YSO, ESO-HA 1481 (4 mags in 3 years) [ TNS 2021ckv | Gaia21arx ] ( Light Curve 2012-2018, Reipurth et al ) |
| AT 2021ckv / PR Ori - 2021-09-28 (T+231.4d) Image below (2021-09-28.181) was taken 231.4 days after discovery of 2021ckv Position of reported YSO Type Transient is shown by white cross-hairs. Measured Magnitude +11.10 (Clear Filter) |
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| Annotated CCD Image (50% size, linear scale, cropped) 4 x 60s exposure (average combine), 3x3 binning, C Filter 2021-10-04 02:35 UT (#920165-69) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2021ckv / PR Ori on Transients 2021 Page >> |
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AT 2021zkf / V0645 Cyg (Cygnus) AT2021zkf (Type: YSO) discovered 2021-09-13.232 UT by Gaia Alias: Gaia21ego, GCVS V0645 Cyg Triggering Magnitude 11.16 (G-Gaia Filter) vs Historic Magnitude 12.14 +/- 0.29 SD Slow rise of known YSO V645 Cyg, 1 mag in over 5 years ( TNS 2021zkf | Gaia21ego ) |
| AT 2021zkf - 2021-10-04 (T+20.8d) Image below (2021-10-04.024) was taken 20.8 days after discovery of 2021zkf Position of transient (distinct) is shown by white cross-hairs Estimated Magnitude +10.4 (Clear Filter) |
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| Annotated CCD Image (100% size, linear scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-04 00:41 UT (#920081-84) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2021zkf / V0645 Cyg on Transients 2021 Page >> |
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| NGC 940 with SN 2021vtl (Triangulum) SN 2021vtl (Type: Ia) discovered 2021-08-11.930 UT by XOSS Alias: PSP21D, Gaia21duk, PSN J02292803+3138385 (Rochester Supernova site ) |
| NGC 940 with SN 2021vtl - 2021-10-03 (T+53.0d) Image below (2021-10-03.976) was taken 53.0 days after discovery of 2021vtl SN (faint) is shown by white cross-hairs Estimated Magnitude +16.9 (Clear Filter) |
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| Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-03 23:34 UT (#920025-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021vtl (NGC 940) on Supernovae 2021 Page >> |
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| NGC 1166 with SN 2021zby (Aries) SN 2021zby (Type: II) discovered 2021-09-17.453 UT by ATLAS Alias: ATLAS21bixf (Rochester Supernova site | Enrico Prosperi image ) |
| NGC 1166 with SN 2021zby - 2021-09-29 (T+12.5d) Image below (2021-09-29.975) was taken 12.5 days after discovery of 2021zby Position of SN (faint) is shown by white cross-hairs Estimated Magnitude +17.0 (Clear Filter) |
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| Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-29 23:33 UT (#918150-54) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021zby (NGC 1166) on Supernovae 2021 Page >> |
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| NGC 6184 with SN 2021wkv (Hercules) SN 2021wkv (Type: Ia, zhost=0.027329) discovered 2021/08/20.277 UT by ATLAS Alias: ATLAS21bgqy. Magnitude +18.2 at discovery (Rochester Supernova site ) |
| NGC 6184 with SN 2021wkv - 2021-10-04
(T+44.8d) Image below (2021-10-04.038) was taken 44.8 days after discovery of 2021wkv Position of SN (barely visible) is shown by white cross-hairs. Poor quality image (poor seeing) |
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| Annotated CCD Image (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-04 01:04 UT (#920088-92) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021wkv (NGC 6184) on Supernovae 2021 Page >> |
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| NGC 6500 with SN 2021wuf (Hercules) SN 2021wuf (Type: Ia) discovered 2021-08-23.372 UT by ATLAS Alias: ATLAS21bgsc (Rochester Supernova site | Mantero Andrea image ) |
| NGC 6500 with SN 2021wuf - 2021-10-03
(T+41.6d) Image below (2021-10-03.949) was taken 41.6 days after discovery of 2021wuf Position of SN (distinct) is shown by white cross-hairs. Measured Magnitude +15.50 (Clear Filter) Relatively poor quality image (poor seeing) |
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| Annotated CCD Image (100% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2021-10-03 22:53 UT (#920003-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021wuf (NGC 6500) on Supernovae 2021 Page >> |
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| This Web Page: | CCD Images - Session 920 (2021-10-03) |
| Last Updated : | 2024-06-04 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
