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Images - Session 1151 (2023-09-29)
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Objects Session Notes
126P/IRAS - Comet AT 2023tjq - Type ulens? Transient AT 2023tdi - Type BL Transient (QSO B1028+511) LEDA 1488100 - Galaxy with Type Ia Supernova 2023olz M31 AT 2023ttu - Transient in M31 (Attempt) M31 2023-03a? - Candidate Nova in M31 Nova AT 2023trk - Extragalactic Nova in M31 NGC 2326 - Spiral Galaxy with Type II Supernova 2023pgb - 144P/Kushida attempt rejected (due to bright sky background)
- LEDA 4201363 w/SN2022vik attempt failed (due to bad guiding/cloud)Variable Stars (photometric monitoring) - BL Lac Nearby Stars (astrometric monitoring) - None
- DX Cnc attempt failed (due to bad guiding/cloud)-
- All-night session (7.7 hrs). First part was associated with refocussing of main scope's primary mirror (which has progressively slipped over recent sessions) and a telescope resync / park / restart operation. Observing session began at 01:15 - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 7.5°C (min) - CCD Temperature: -10°/ -15° C - Notes from 2023-09-29 >> -
| 126P/IRAS - 2023-09-30 (passing through Cassiopeia) Sun Distance 1.95 AU Earth Distance 1.29 AU (193.3 million km) |
126P/IRAS - 2023-09-30 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -98.80 arcsec/hr, Dec 72.49 arcsec/hr) |
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| Annotated CCD Image (50% size, square root scale) 2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 02:02 UT (#1151058-59) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
Annotated CCD Image (100% size, square root scale, cropped) 9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 02:07 UT (#1151058-66) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Images of 126P/IRAS on Comets 2023 Page >> |
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| AT 2023tjq (Orion) AT 2023tjq (Type: ulens?) discovered 2023-09-18.899 UT by Gaia Alias: Gaia23cne Discovery Mag 13.80 (G-Gaia Filter) vs Historic Mag 14.06 Bright gal.plane source candidate microlensing event or Be-type outburst rises by 0.3 mag) ( TNS 2023tjq | Gaia23cne ) |
| AT 2023tjq - 2023-09-30 (T+11.2d) Image below (2023-09-30.122) was taken 11.2 days after discovery of 2023tjq Position of reported transient (bright) is shown by white cross-hairs Measured Magnitude +13.02 (Clear Filter) |
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| Annotated CCD Image (100% size, linear scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 03:04 UT (#1151086-90) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2023tjq on Transients 2023 Page >> |
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| AT 2023tdi (Ursa Major) AT 2023tdi (Type: BL) discovered 2023-09-15.424 UT by Gaia Alias: Gaia23ckv, QSO B1028+511 Discovery Mag 16.34 (G-Gaia Filter) vs Historic Mag 14.06 Known BL Lac type object (QSO B1028+511) brightens by 0.5 mag ( TNS 2023tdi | Gaia23ckv ) |
| AT 2023tdi (T+14.8d) Alias: Gaia23ckv, QSO B1028+511 |
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| Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 04:28 UT (#1151127-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| AT 2023tdi - 2023-09-30 (T+14.8d) Image below (2023-09-30.181) was taken 14.8 days after discovery of 2023tdi Position of reported transient (faint) is shown by white cross-hairs Measured Magnitude +15.67 (Clear Filter) |
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| Annotated CCD Image (100% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 04:28 UT (#1151127-31) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2023tdi on Transients 2023 Page >> |
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| LEDA 1488100 with SN 2023olz (Taurus) SN 2023olz (Type: Ia) discovered 2023-08-04.405 UT by ZTF Alias: ZTF23aavxtvg Discovery Magnitude 19.02 (g-ZTF Filter) ( TNS 2023olz ) |
| LEDA 1488100 with SN 2023olz - 2023-09-30 (T+56.7d) Image below (2023-09-30.109) was taken 56.7 days after discovery of 2023olz Position of reported SN (not distinguishable) is indicated by white cross-hairs. Measured Magnitude ? Poor quality image (bright moonlit sky background) |
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| Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 02:44 UT (#1151080-83) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2023olz (in LEDA 1488100) on Supernova 2023 Page >> |
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| AT 2023ttu in M31 (Andromeda) AT 2023ttu (Type: unk) discovered 2023-09-29.359 UT by Yuqing Ren, Jingyuan Zhao Discovery Mag 16.4 (L_ filter) ( TNS 2023ttu ) |
| AT 2023ttu in M31 Cam2 Reference Image, Position of AT 2023ttu is shown by blue circle Limits of M31 Spiral Galaxy lie beyond image FOV |
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| Annotated CMOS Image (16% size) (10s exposure, 1x1 binning) 2022-10-30 00:21 UT TS 80mm APO, ZWO ASI178MC |
| AT 2023ttu in M31 - 2023-09-30 (T+0.7d) Image below (2023-09-30.015) was taken 0.7 days after discovery of 2023ttu Position of reported transient (not visible) is shown by white cross-hairs A faint object lies just west and south of the reported transient coords. Is this object the transient 2023ttu ? |
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| Annotated CCD Image (125% size, square root scale, unsharp masked (um4), gamma correction, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 00:31 UT (#1151034-38) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2023ttu (in M31) on Transients 2023 Page >> |
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| M31 with Nova M31 2023-03a? (Andromeda) Nova M31 2023-03a? (Type: unk) discovered 2023-03-27.793 UT by Kamil Hornoch et al. Alias: PNV J00423893+4126379 Discovery Mag 16.6 ( Rochester Extragalactic Novae | Discovery Image (Kamil Hornoch et al) ) |
| Nova M31 2023-03a? - 2023-09-30 (T+186.2d) Image below (2023-09-30.029) was taken 186.2 days after discovery of Nova M31 2023-03a? Position of earlier transient (not visible, probably faded/no longer visible) is shown by white cross-hairs Poor quality image (bright moonlit sky background) |
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| Annotated CCD Image (100% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 00:49 UT (#1151040-44) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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| Annotated Negative CCD Image (100% size, square root scale, cropped) Image details as above |
| Images of Nova M31 2023-03a? (M31) on Transients 2023 Page >> |
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| Nova AT 2023trk in M31 (Andromeda) AT 2023trk (Type: EGN) discovered 2023-09-26.461 UT by ATLAS Alias: ATLAS23tfn, PNV J00441143+4120239 Discovery Mag 17.38 (orange-ATLAS filter) ( TNS 2023trk ) |
| Nova M31 AT 2023trk - 2023-09-30
(T+3.6d) Image below (2023-09-30.050) was taken 3.6 days after discovery of 2023trk Position of reported transient (very faint) is shown by white cross-hairs Poor quality image (bright moonlit sky background) |
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| Annotated CCD Image (100% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 01:15 UT (#1151051-52) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of Nova AT 2023trk (in M31) on Transients 2023 Page >> |
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| NGC 2326 with SN 2023pgb (Lynx) SN 2023pgb (Type: II) discovered 2023-08-12.496 UT by ZTF Alias: ZTF23aaxdfya Discovery Magnitude 17.44 ( r-ZTF) ( TNS 2023pgb ) |
| NGC 2326 with SN 2023pgb - 2023-09-30 (T+48.6d) Image below (2023-09-30.136) was taken 48.6 days after discovery of 2023pgb Position of reported SN (very faint) is indicated by white cross-hairs. Measured Magnitude ? (unable to extract) Poor quality image (bright moonlit sky background) |
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| Annotated CCD Image (150% size, square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, Clear Filter 2023-09-30 03:19 UT (#1151093-94) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2023pgb (in NGC 2326) on Supernova 2023 Page >> |
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| This Web Page: | Images - Session 1151 (2023-09-29) |
| Last Updated : | 2024-06-15 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
