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CCD Images - Session 910 (2021-08-31)
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| (2) Pallas (Passing through Pisces) Sun Distance 3.17 AU Earth Distance 2.18 AU (325.6 million km) |
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| Annotated CCD Image (100% size, square root scale, cropped) 5 x 20s exposure (average combine), 3x3 binning, C Filter 2021-08-31 23:51 UT (#910056-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| (2) Pallas - Composite Image Composite image (23:51 & 01:42 hUT) showing motion of 2 Pallas over a 111 minute period (Motion: Ra -26.89 arcsec/hr, Dec -31.44 arcsec/hr) |
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| Annotated CCD Image (72% size, linear scale, cropped) 10 x 20s exposure (average combine), 3x3 binning, C Filter 2021-08-31 23:51 UT (#910056-60) - 5 frames 2021-09-31 01:42 UT (#910097-101) - 5 frames 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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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 - 2021-09-01 (T+279.3d) Image below (2021-09-01.105) was taken 279.3 days after discovery of nova Nova is shown by white cross hairs. Measured magnitude +15.25 (fading) |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 90s exposure (average combine), 3x3 binning, C Filter 2021-09-01 02:36 UT (#910120-24) 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 2021/03/30.055, AT2021hkn (Type: Nova) discovered 2021/03/30.055 UT by Gaia Alias: Gaia21bpe, V1405 Cas |
| Nova Cas 2021 / AT2021hkn - 2021-09-01 (T+155.1d) Image below (2021-09-01.130) was taken 155.1 days after discovery of Nova Measured magnitude +9.1 (linked with Detection Threshold = 30) |
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| Annotated CCD Image (100% size, linear scale, cropped) 4 x 30s exposure (average combine), 3x3 binning, C Filter 2021-09-01 03:09 UT (#910136-40) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Nova Cas 2021 (V1405 Cas) Spectra - 2021-09-01 (T+155.1d) |
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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 2021-09-01 03:12 UT (#910141-45) 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 4593 (Hercules) Deep Sky Challenge Object, Ast. Now, Jul 2021 [ Deep Sky Challanges (Ast.Now) , Planetary Nebula ] |
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| Annotated CCD Image (100% size, square root scale, cropped) 5 x 20s exposure (average combine), 3x3 binning, C Filter 2021-08-31 22:31 UT (#910006-10) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 4593 - Detail Very little detail can be seen |
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| Annotated CCD Image (100% size, log scale, cropped) 6 x 120s exposure (average combine), 2x2 binning, Ha Filter 2021-08-31 22:47 UT (#910016-21) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 4593 Spectra Strong emission lines typical of a planetrary nebula Star (left), Spectra (middle/right) |
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| CCD Image (100% size, linear scale, rotated, cropped) 5 x 90s exposure (average combine), 2x2 binning, S Filter 2021-08-31 22:36 UT (#910011-15) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 4593 - Earlier Image (2007) |
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| Annotated CCD Image (100% size, linear scale) 3 x 60s exposure (average combine), 2x2 binning, C filter,  2007-04-02 21:53h UT (#187266-68) 8" LX200 Classic + ST-7E |
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| IC 4997 (Sagitta) Deep Sky Challenge Object, Ast. Now, Aug 2021 Planetary Nebula with variability (GCVS QV Sge) [ Deep Sky Challanges (Ast.Now) , Planetary Nebula ] |
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| Annotated CCD Image (125% size, linear scale, cropped) 5 x 20s exposure (average combine), 3x3 binning, C Filter 2021-08-31 23:00 UT (#910025-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 4997 - Wider View |
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| Annotated CCD Image (50% size, linear scale) Image details as above |
| IC 4997 - Spectra Image Pl. Neb spectra compared with adjacent star HD 355464 |
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| CCD Image, Spectra (100% size, square root scale, rotated, cropped) 4 x 90s exposure (average combine), 2x2 binning, S Filter 2021-08-31 23:06 UT (#910030-34) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| IC 4997 - Spectra Image Star (left), Spectra (middle) |
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| CCD Image, Spectra (100% size, square root scale, rotated, cropped) Image details as above |
| IC 4997 - Spectra (corrected) Strong O III and Ha emission lines |
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| CCD Image, Spectra (100% size, square root scale, rotated, cropped) Image details as above |
| IC 4997 - Earlier Spectra Image (2018-06-12) Star (left), Spectra (middle) (spectra from a normal star on lower left) |
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| CCD Image, Spectra (100% size, rotated, cropped) 90s exposure (single raw frame), 3x3 binning, S Filter 2018-06-12 01:28 UT (#613053) 12" LX200R (at f/10.4) + ST-10XME |
| IC 4997 - Earlier Image (2017-11-02) Starfield with position of planetary nebula is shown by white cross-hairs |
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| Annotated CCD Image (50% size) 2 x 30s exposure (average combine), 3x3 binning, C Filter 2017-11-02 19:28h UT (#603076-81) 12" LX200R (at f/10.4) + ST-10XME |
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| M31 & reported transient Nova M31 2021-08a? (Andromeda) Nova M31 2021-08a? (Type: MP) discovered 2021-08-21.919 UT by Kamil Hornoch et al. Alias: PNV J00394278+4135145 [ Rochester ExtraGalactic Novae, Discovery Image ] Transient was subsequently determined to be Minor Planet (5234) Sechenov) but this wasn't appreciated at the time of scheduling & acquiring the image below. Transient 'discovery' : 2021-08-21 22:03 UT, Discovery Mag +16.4 (vs forecast magnitude for MP of +16.49) |
| Image centered on reported position of Nova M31
2021-08a? (T+10.1d) Image below (2021-08-31.976) was taken 10.1 days after reported discovery of transient 'Nova M31 2021-08a?' Position of the reported transient is shown by the white circle No object can be seen at the reported position, the transient is therefore deemed to be unconfirmed. |
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| Annotated CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-08-31 23:34 UT (#910049-53) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Wider View Image centered on reported position of Nova M31 2021-08a? (T+10.1d) The galaxy in top right left corner image is the M31 satellite, NGC 205 Position of the reported transient is shown by the white circle |
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| Annotated CCD Image (50% size,square root scale) Image details as above |
| TheSky6 View set to Date/Time of Transient Discovery (2021-08-21.919 UT, T0.0d) |
| Transient 'Nova M31 2021-08a?' was subsequently determined to
be the Minor Planet (5234) Sechenov The following chart demonstrates the presence of this minor planet at the reported time & position of the transient 'discovery'. |
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| Screen Capture from TheSky6 |
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M33 (Triangulum) Southern portion of M33 spiral galaxy |
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| CCD Image (70% size, log scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 00:10 UT (#910065-68) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 [ Larger Image 100% size ] |
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| False Colour CCD Image (70% size, square root scale) Inverse Spectrum Image details as above |
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M33 with AT2021wcf (Triangulum) AT2021wcf (Type: unk) discovered 2021-07-20.704 UT by Koichi Itagaki Alias: Gaia21duh, Nova M33 2021-07a?, TCP J01333854+3035364 Discovery Magnitude 18.5 (g-Gaia Filter) (Rochester Supernova site | Rochester EGN Page | Nick James image | AT2021wcf is a blue transient / possibly a nova [ TNS 2021wcf | Gaia21duh ] |
| M33 with AT2021wcf (T+42.3d) Region with the reported transient is shown by the white rectangle |
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| Annotated CCD Image (70% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 00:10 UT (#910065-68) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| M33 with AT2021wcf - 2021-09-01 (T+42.3d) Image below (2021-09-01.001) was taken 42.3 days after discovery of 2021wcf FOV is showed by the white rectangle in wider view image above The reported transient (faint) is shown by white cross-hairs |
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| Annotated CCD Image (200% size, square root scale, cropped 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 00:10 UT (#910065-68) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Negative CCD Image (200% size, square root scale, cropped Image details as above |
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| NGC 940 with SN2021vtl (Triangulum) SN 2021vtl (Type: Ia) discovered 2021-08-11.930 UT by XOSS Alias: PSP21D, Gaia21duk, PSN J02292803+3138385 Discovery Magnitude 17.3 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 18.0 Confirmed SN Ia ( TNS 2024ivo | Gaia21duk ) |
| NGC 940 with SN2021vtl (T+20.1d) |
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| Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 01:29 UT (#910090-94) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| NGC 940 with SN2021vtl - 2021-09-01 (T+20.1d) Image below (2021-09-01.056) was taken 20.1 days after discovery of 2021vtl SN is shown by white cross-hairs |
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| Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 01:29 UT (#910090-94) 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 6184 with SN 2021wkv (Hercules) SN 2021wkv (Type: Ia, zhost=0.027329) discovered 2021/08/20.277 UT by ATLAS Alias: ATLAS21bgqy. Gaia21fab Discovery Magnitude 18.16 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 19.2 Confirmed SN Ia Gaia, 2021-10-31 22:54, Mag 19.10 Gaia, 2021-11-01 00:40, Mag 19.04 Gaia, 2021-12-13 10:30, Mag 19.93 Gaia, 2022-01-09 18:12, Mag 20.38 (Rochester Supernova site | Rafa Ferrando Image ) [ TNS 2021wkv | Gaia21fab ] |
| NGC 6184 with SN 2021wkv - 2021-09-01
(T+11.8d) Image below (2021-09-01.040) was taken 11.8 days after discovery of 2021wkv SN position (faint but distinct) is shown by white cross-hairs. Measured mag +15.95 (Clear Filter) |
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| Annotated CCD Image (125% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 01:11 UT (#910086-87) 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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| UGC 505 with SN2021ukt (Cetus) SN 2021ukt (Type: Ia) discovered 2021/07/31.441 UT by ZTF Alias: ZTF21abpxquj, Gaia21dsv ( Rochester Supernova site | Stan Howerton image | Gaia21dsv ) |
| UGC 505 with SN2021ukt - 2021-09-01 (T+31.6d) Image below (2021-09-01.076) was taken 31.6 days after discovery of 2021ukt SN position is shown by white cross-hairs. Measured magnitude +16.05 (Clear Filter) |
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| CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 01:58 UT (#910105-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021ukt (UGC 505) on Supernovae 2021 Page >> |
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| UGC 2605 with SN2021wvw (Perseus) SN 2021wvw (Type: II, z=0.009944) discovered 2021-08-24.606 UT by PS1 Alias: PS21jnb Host Alias : PGC 12073 (Rochester Supernova site ) |
| UGC 2605 with SN2021wvw - 2021-09-01 (T+7.5d) Image below (2021-09-01.090) was taken 7.5 days after discovery of 2021wvw Supernova (faint) shown by white cross-hairs Measured magnitude +17.6 (Clear Filter) |
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| CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 02:18 UT (#910112-16) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021wvw (UGC 2605) on Supernovae 2021 Page >> |
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| UGC 3240 with SN2021vau (Orion) SN 2021vau (Type: Ia, z=0.036) discovered 2021/08/04.610 UT by ASAS-SN Alias: ASASSN-21ou, Gaia21dzq Host Alias : PGC 16668 (catalog mag +15.5) (Rochester Supernova site | Discovery image | Gaia21dzq ) |
| UGC 3240 with SN2021vau - 2021-09-01 (T+27.5d) Image below (2021-09-01.115) was taken 27.5 days after discovery of 2021vau Supernova position (v. close to galaxy centre) shown by white indicator line Measured magnitude +15.8 (SN + Host Nucleus) |
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| CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 02:52 UT (#910128-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021vau (UGC 3240) on Supernovae 2021 Page >> |
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UGC 4002 with SN2021wvy (Lynx) SN 2021wvy (Type: II) discovered 2021-08-23.520 UT by ZTF Alias: ZTF21abvdikq, Gaia21dym Magnitude at discovery +18.02 ( Rochester Supernova site ) [ Gaia21dym ] |
| UGC 4002 with SN2021wvy (T+8.5d) Bright star in FOV is HIP 37917 (mag +7.0) |
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| Annotated CCD Image (100% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 00:45 UT (#910075-79) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| UGC 4002 with SN2021wvy - 2021-09-01 (T+8.5d) Image below (2021-09-01.025) was taken 8.5 days after discovery of 2021wvy The reported transient (faint) is shown by white cross-hairs |
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| Annotated CCD Image (150% size, square root scale, cropped 5 x 180s exposure (average combine), 3x3 binning, C Filter 2021-09-01 00:45 UT (#910075-79) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2021wvy (UGC 4002) on Supernovae 2021 Page >> |
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| This Web Page: | CCD Images - Session 910 (2021-08-31) |
| Last Updated : | 2024-06-01 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
