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CCD Images - Session 887 (2021-04-16)
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Objects Session Notes
7P/Pons-Winnecke - Comet Nova Per 2020 - Nova (V1112 Per, AT2020abap) Nova Cas 2021 - Nova (V1405 Cas) IC 863 - Spiral Galaxy with Type IIn Supernova 2021foa IC 992 - Spiral Galaxy with Type Ic Supernova 2021dwg NGC 4227 - Spiral Galaxy with Type Ia Supernova 2021biz NGC 4774 - Spiral Galaxy with Type IIP Supernova 2021cjd NGC 5018 - Elliptical Galaxy with Type Ia Supernova 2021fxy Variable Stars (photometric monitoring) - CY Cyg, BL Lac, CY Lyr, KIC 8462852 Nearby Stars (astrometric monitoring) - None
- Night session (5.6 hours) - Main aims of the session were to acquire a selection of variable star, nearby star and comet targets and deep sky targets as cloud allowed - Poor quality skies - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 2°C (min) - CCD Temperature: -20°C - Notes from 2021-04-16 >> [ Local Files >> ] - - Aurora Images/Video from 2021-04-16 >>
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| 7P/Pons-Winnecke - 2021-04-17 (passing through Ophiuchus) Sun Distance 1.32 AU (approaching) Earth Distance 0.67 AU (100.3 million km) Expected position of comet is shown by white circle |
7P/Pons-Winnecke - 2021-04-17, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 127.72 arcsec/hr, Dec -25.83 arcsec/hr) Comet (faint /unconfirmed) is indicated by white cross-hairs. |
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| Annotated CCD Image (50% size, square root scale) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2021-04-17 02:50 UT (#887084-85) 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) 12 x 45s exposure (average combine), 3x3 binning, C Filter 2021-04-17 02:53 UT (#887082-94) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of 7P/Pons-Winnecke on Comets 2021 Page >> |
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| Nova Per 2020 (Perseus) Nova in Perseus discovered 2020/11/25.807 [ Novae ] Nova Per 2020 discovered independently by Seiji Ueda and Stanislav Korotkiy et al AT2020abap (Type: CV) reported 2020/11/27.230 UT by PGIR Alias: N Per 2020 , PGIR20fbf, TCP J04291888+4354233, TCP J04291884+4354232, V1112 Per |
| Nova Per 2020 - 2021-04-16 (T+142.1d) Image below (2021-04-16.934) was taken 142.1 days after discovery of nova Nova is shown by white cross hairs. Measured magnitude +14.31 (flat) |
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| Annotated CCD Image (100% size, linear scale, cropped) 4 x 90s exposure (average combine), 3x3 binning, C Filter 2021-04-16 22:29 UT (#887012-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of Nova Per 2020 on Novae Page >> |
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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 -2021-04-16 (T+29.5d) Image below (2021-04-16.925) was taken 29.5 days after after discovery of Nova Nova is shown by white cross hairs. Measured magnitude +8.23 Note: star object is saturated and shows some blooming, mag is probably underestimated (linked with Detection Threshold = 50) |
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| CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2021-04-16 22:16 UT (#887004-08) 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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| IC 863 with SN 2021foa (Virgo) SN 2021foa (Type: IIn) discovered 2021/03/15.450 UT by ASAS-SN Alias: ASASSN-21dg Discovery Magnitude 15.9 (g-Sloan Filter) vs Prior Non-Detection Limiting Magnitude 17.9 ( Rochester Supernova site | Discovery Image | TNS 2021foa ) |
| IC 863 with SN 2021foa - 2021-04-16 (T+32.5d) Image below (2021-04-16.992) was taken 32.5 days after discovery of 2021foa SN is indicated by white cross-hairs. Estimated Magnitude +15.4 (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 2021-04-16 23:57 UT (#887045-49) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021foa (IC 863) on Supernovae 2021 Page >> |
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| IC 992 with SN2021dwg (Virgo) SN 2021dwg (Type: Ic) discovered 2021/02/27.420 UT by ZTF Alias: ZTF21aannoix Magnitude +18.44 at discovery (Rochester Supernova site | TNS SN 2021dwg | ZTF21aannoix Notes) [ Supernovae 2021 ] |
| IC 992 with SN 2021dwg - 2021-04-17 (T+48.6d) Image below (2021-04-17.007) was taken 48.6 days after discovery of 2021dwg Position of SN (very faint) is shown by white cross-hairs Estimated Magnitude +18.3 (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 2021-04-17 00:19 UT (#887053-57) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021dwg (IC 992) on Supernovae 2021 Page >> |
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| NGC 4227 with SN2021biz (Canes Venatici) SN 2021biz (Type: Ia) discovered 2021/01/29.543 UT by ATLAS Alias: ATLAS21dfz Discovery Magnitude 18.33 (orange-ATLAS Filter) ( Rochester Supernova site | Gianluca Masi image | Jean-Claude Merlin image | TNS 2021biz ) |
| NGC 4227 with SN 2021biz - 2021-04-16 (T+77.4d) Image below (2021-04-16.944) was taken 77.4 days after discovery of 2021biz Position of SN (faint) is shown by white cross hairs. Estimated Magnitude +17.6 (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 2021-04-16 22:49 UT (#887020-24) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021biz (in NGC 4227) on Supernovae 2021 Page >> |
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| NGC 4774 / Kidney Bean Galaxy (Canes Venatici) NGC 4774 with SN 2021cjd (Canes Venatici) SN 2021cjd (Type: IIP) discovered 2021/02/07.491 UT by ZTF Alias: ZTF21aajgdeu Discovery Magnitude 20.23 (g-ZTF Filter) ( TNS 2021cjd ) |
| NGC 4774 - Spiral Galaxy (Kidney Bean Galaxy) with SN 2021cjd (T+68.5d) Ring Galaxy, J.Lowrey List [ Ring Galaxies ] |
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| Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-04-16 23:11 UT (#887028-32) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| NGC 4774 with SN 2021cjd - 2021-04-16 (T+68.5d) Image below (2021-04-16.960) was taken 68.5 days after discovery of 2021cjd |
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| Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-04-16 23:11 UT (#887028-32) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| NGC 4774 - Earlier Image (2020-02-02) Ring Galaxy, J.Lowrey List NGC 4774 (catalog mag +14.8) with adjacent faint galaxy PGC 2087677 (catalog mag +17.2) |
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| Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2020-02-02 05:19 UT (#749304-08) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| NGC 4774 - Earlier Image (2019-12-31) NGC 4774 (catalog mag +14.8) with adjacent faint galaxy PGC 2087677 (catalog mag +17.2) |
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| Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2019-12-31 23:51 UT (#734368-72) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021cjd (in NGC 4774) on Supernovae 2021 Page >> |
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| NGC 5018 with SN 2021fxy (Virgo) SN 2021fxy (Type: Ia) discovered 2021/03/17.725 UT by Koichi Itagaki Discovery Magnitude 16.9 (Clear Filter) vs Prior Non-Detection in DSS Image ( Rochester Supernova site | Discovery Image | Paolo Campaner image ) ( TNS 2021fxy ) |
| NGC 5018 with SN 2021fxy - 2021-04-16 (T+30.3d) Image below (2021-04-16.975) was taken 30.3 days after discovery of 2021fxy SN is indicated by white cross-hairs. Measured magnitude + 14.59 (Clear Filter) |
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| Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-04-16 23:33 UT (#887036-40) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021fxy (NGC 5018) on Supernovae 2021 Page >> |
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| This Web Page: | CCD Images - Session 887 (2021-04-16) |
| Last Updated : | 2024-07-09 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
