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12P/Pons-Brooks - 2023-12-18 (passing through Lyra) Sun Distance 2.18 AU (approaching) Earth Distance 2.42 AU (361.6 million km) |
12P/Pons-Brooks - 2023-12-18 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 86.93 arcsec/hr, Dec -3.66 arcsec/hr) |
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Annotated CCD Image (50% size, square root scale) 90s exposure (single frame), 3x3 binning, Clear Filter 2023-12-18 05:11 UT (#1174171) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (100% size, log cale, cropped) 5 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 05:16 UT (#1174171-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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12P/Pons-Brooks - 2023-12-18 Detail | 12P/Pons-Brooks - 2023-12-18 Detail | |
Annotated false-colour CCD Image (50% size, log scale) 5 x 90s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 05:16 UT (#1174171-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated false-colour CCD Image (100% size, log scale, cropped) Image details as left |
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Images of 12P/Pons-Brooks on Comets 2023 Page >> |
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103P/Hartley - 2023-12-18 (passing through Hydra) Sun Distance 1.39 AU AU (receeding) Earth Distance 0.61 AU (91.8 million km) |
103P/Hartley - 2023-12-18 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -24.55 arcsec/hr, Dec -24.64 arcsec/hr) |
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Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 01:48 UT (#1174120-21) 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) 9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 01:52 UT (#1174120-28) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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Images of 103P/Hartley on Comets 2023 Page >> |
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C/2017 K2 (PANSTARRS) - 2023-12-18 (passing through Orion) Sun Distance 4.49 AU (receeding) Earth Distance 3.60 AU (538.3 million km) |
C/2017 K2 (PANSTARRS) - 2023-12-18 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -41.62 arcsec/hr, Dec 18.11 arcsec/hr) |
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Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 00:12 UT (#1174053-55) 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) 9 x 45s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 00:16 UT (#1174053-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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Images of C2017 K2 (PANSTARRS) on Comets 2021 Page >> | ||
Images of C2017 K2 (PANSTARRS) on Comets 2022 Page >> | ||
Images of C2017 K2 (PANSTARRS) on Comets 2023 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 - 2023-12-18 (T+1004.6d) Image below (2023-12-18.025) was taken 1004.6 days after discovery of nova Nova is shown by white cross hairs. Measured magnitude +12.14 (Clear Filter) |
Annotated CCD Image (100% size, linear scale, cropped) 4 x 30s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 00:37 UT (#1174068-72) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Nova Cas 2021 (V1405 Cas) Spectra - 2023-12-18 (T+1004.6d) |
Spectra produced in AstroMain using Image taken with Star Analyser
200 5 x 90s exposure (average combine), 2x2 binning, S Filter 2023-12-18 00:43 UT (#1174073-77) 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 2023tjz (Orion) AT 2023tjz (Type: unk) discovered 2023-09-17.895 UT by Gaia Alias: Gaia23cnk Discovery magnitude 12.44 (G-Gaia filter) vs Historic Mag 10.71 Known Carbon star fades by 1.5 mag ( TNS 2023tjz | Gaia23cnk ) |
AT 2023tjz - 2023-12-18 (T+91.2d) Image below (2023-12-18.051) was taken 91.2 days after discovery of 2023tjz Position of earlier reported transient (distinct, fading ?) is shown by white cross-hairs Measured magnitude +12.73 (Clear Filter) |
Annotated CCD Image (100% size, linear scale, cropped) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 01:15 UT (#1174087-88) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of AT 2023tjz on Transients 2023 Page >> |
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AT 2023ttx (Canis Major) |
AT 2023ttx - 2023-12-18 (T+81.9d) Image below (2023-12-18.085) was taken 81.9 days after discovery of 2023ttx Position of reported transient (relatively distinct, brightening) is shown by white cross-hairs Measured Magnitude +12.57 (Clear Filter) |
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Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 02:06 UT (#1174131-35) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of AT 2023ttx on Transients 2023 Page >> |
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AT 2023yyz (Cepheus) |
AT 2023yyz - 2023-12-18 (T+16.7d) Image below (2023-12-18.019) was taken 16.7 days after discovery of 2023yyz Position of reported transient (relatively distinct) is shown by white cross-hairs Measured Magnitude +13.07 (Clear Filter) Single frame only |
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Annotated CCD Image (100% size, linear scale, cropped) 180s exposure (single frame), 3x3 binning, Clear Filter 2023-12-18 00:27 UT (#1174065) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of AT 2023yyz on Transients 2023 Page >> |
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AT 2023zzs (Cassiopeia) |
AT 2023zzs - 2023-12-17 (T+5.7d) Image below (2023-12-17.999) was taken 5.7 days after discovery of 2023zzs Position of reported transient (relatively distinct) is shown by white cross-hairs Measured Magnitude +13.93 (Clear Filter) |
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Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 00:01 UT (#1174045-49) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of AT 2023zzs on Transients 2023 Page >> |
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AT 2023aaiv (Cassiopeia) AT 2023aaiv (Type: Afterglow) discovered 2023-12-15.437 UT by MASTER Alias: MASTER OT J003857.42+573849.6, GRB 231215A Discovery Magnitude 16.5 (Clear Filter) Optical counterpart to GRB 231215A ( TNS 2023aaiv ) |
AT 2023aaiv - 2023-12-17 (T+2.5d) Image below (2023-12-17.954) was taken 2.5 days after discovery of 2023aaiv Position of earlier reported transient (no longer visible) is shown by white circle |
Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-17 23:03 UT (#1174023-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
AT 2023aaiv - 2023-12-17 Detail (T+2.5d) |
Annotated Negative CCD Image (250% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-17 23:03 UT (#1174023-27) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of AT 2023aaiv on Transients 2023 Page >> |
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M31 with Nova AT 2023yij (Andromeda) AT 2023yij (Type: EGN) discovered 2023-11-23.799 UT by Castellani Flavio Alias: OMB-PNV21, PNV J00424587+4121379, Gaia23dnb Discovery Mag 19.1 (Clear Filter) Gaia, 2023-12-04 00:05 18.12 (T+10.2d) Gaia, 2023-12-18 06:09 19.31 (T+24.5d) ( TNS 2023yij | Gaia23dnb) |
Nova M31 AT 2023yij - 2023-12-17
(T+24.1d) Image below (2023-12-17.938) was taken 24.1 days after discovery of 2023yij Position of reported transient (not visible) is shown by white cross-hairs Non Detection, limiting magnitude +17.2 (Clear Filter) |
Annotated CCD Image (100% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-17 22:35 UT (#1174012-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of Nova AT 2023yij (in M31) on Transients 2023 Page >> |
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M101 with SN 2023ixf (Ursa Major) SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki Alias: ZTF23aaklqou, AT2023iyi, AT2023jgd, AT2023jfz, PSN J14033858+5418421, PS23dij Discoverer Mag 14.9 (Clear filter) ( Rochester Supernova site | TNS 2023ixf ) SN 2023ixf (Type: IIL) discovered 2023-05-19.727 UT by Koichi Itagaki at Mag 14.9 is located near M101's prominant star-forming region NGC 5461. The supernova resulted from a exploding red supergiant and lies just 21 million light years away. It's the closest core-collapse supernova to us since SN 1993J which lit up M81 (some 12 million ly away) in Spring 1993. The SN is designated of type II-L (L for 'linear') , which is characterised by a rapid rise to maximum brightness followed by a slow and gradual decrease, that is thought to be brought about by ejection of the dead stars' outer hydrogen shell. (from Article "Summer's Super Supernova", AstNow Magazine, Sep 2023, pp 36-39) |
M101 with SN 2023ixf - 2023-12-17 (T+212.2d) Image below (2023-12-17.970) was taken 212.2 days after discovery of 2023ixf Position of supernova (distinct) is shown by white cross-hairs Measured Magnitude +14.71 (Clear Filter) |
Annotated CCD Image (100% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-17 23:25 UT (#1174032-35) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of SN 2023ixf (M101) on Supernova 2023 Page |
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NGC 1232 / ARP 41 (Eridanus) |
NGC 1232 / ARP 41- Wide View NGC 1232 (PGC 11819 catalog mag +10.7) NGC 1232A (PGC 11834 catalog mag +15.3) |
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Annotated CCD Image (50% size, square root scale) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-17 22:13 UT (#1174006-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Negative CCD Image (50% size, square root scale) Image details as above |
NGC 1232 / ARP 41- Detail |
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Annotated CCD Image (100% size, square root scale, cropped) Image details as above |
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False Colour CCD Image (100% size, square root scale, cropped) Inverse Spectrum Image details as above |
Negative CCD Image (100% size, square root scale, cropped) Image details as above |
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NGC 2642 with SN 2023aaby (Hydra) SN 2023aaby (Type: Ic) discovered 2023-12-14.540 UT by ATLAS Alias: ATLAS23xjl Discovery Magnitude 17.94 (cyan-ATLAS filter) ( TNS 2023aaby ) |
NGC 2642 - Spiral Galaxy with SN 2023aaby (T+3.6d) |
Annotated CCD Image (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 02:20 UT (#1174139-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
NGC 2642 - Spiral Galaxy, detail |
Negative CCD Image (150% size, square root scale, cropped) Image details as above |
NGC 2642 with SN 2023aaby - 2023-12-18 (T+3.6d) Image below (2023-12-18.094) was taken 3.6 days after discovery of 2023aaby Position of reported SN (distinct) is indicated by white cross-hairs. Measured Magnitude +15.17 (Clear Filter) |
Annotated CCD Image (125% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 02:20 UT (#1174139-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Negative CCD Image (125% size, square root scale, cropped) Image details as above |
Images of SN 2023aaby (in NGC 2642) on Supernova 2023 Page >> |
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NGC 3690 with SN 2023wrk (Ursa Major) SN 2023wrk (Type: Ia) discovered 2023-11-04.229 UT by GOTO Alias: GOTO23bdo, ZTF23abpbdfm, ATLAS23vna Discovery Magnitude 18.11 (L-GOTO filter) ( Rochester Supernova site ) ( TNS 2023wrk ) |
NGC 3690 with SN 2023wrk - 2023-12-18 (T+43.9d) Image below (2023-12-18.124) was taken 43.9 days after discovery of 2023wrk Position of SN (distinct, fading) is shown by white cross-hairs Measured Magnitude +14.48 (C Filter) |
Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 03:07 UT (#1174153-57) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of SN 2023wrk (in NGC 3690) on Supernovae 2023 Page >> |
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UGC 68 with SN 2023xqn (Pegasus) SN 2023xqn (Type: Ia) discovered 2023-11-13.222 UT by ATLAS Alias: ATLAS23vno Discovery magnitude 18.17 (cyan-ATLAS Filter) ( TNS 2023xqn ) |
UGC 68 with SN 2023xqn - 2023-12-17 (T+34.8d) Image below (2023-12-17.987) was taken 34.8 days after discovery of 2023xqn Position of reported SN (not clearly distinguishable) is shown by white cross-hairs Measure Magnitude +14.90 (Clear Filter) |
Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-17 23:47 UT (#1174039-42) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Images of SN 2023xqn (in UGC 68) on Supernova 2023 Page >> |
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UGC 4582 with SN 2023twg (Cancer) SN 2023twg (Type: II) discovered 2023-10-02.237 UT by GOTO Alias: GOTO23aon, Gaia23cwy Discovery Magnitude 18.22 (L-GOTO Filter) ( TNS 2023twg | Gaia23cwy ) |
UGC 4582 with SN 2023twg - 2023-12-18 (T+76.9d) Image below (2023-12-18.108) was taken 76.9 days after discovery of 2023twg Position of reported supernova (faint but distinct) is shown by white cross-hairs Estimated Mag +18.1 (Clear Filter) |
Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-12-18 02:45 UT (#1174146-50) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (200% size, square root scale, cropped) Image details as above |
Images of SN 2023twg (in UGC 4582) on Supernova 2023 Page >> |
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This Web Page: | Images - Session 1174 (2023-12-17) |
Last Updated : | 2024-08-30 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |