David's Astronomy Pages Images - Session 1199 (2024-03-20)

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Images (S1200)

Objects	Session Notes
12P/Pons-Brooks - Comet 13P/Olbers - Comet     AT 2024eim - Type YSO? Transient in M42     NGC 1122 - Spiral Galaxy with Type Ia Supernova 2024dru     UGC 2964 - Spiral Galaxy with Transient AT 2024epz     Variable Stars (photometric monitoring) - YZ Cnc, BL Lac      Nearby Stars (astrometric monitoring) - 61 Cyg	- Evening Session (2.1 hrs) . Session ended when sky clarity reduced and clouds developed     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 4°C (min) - CCD Temperature:   -20°C - Notes from 2024-03-20 >>     -

Observing Result

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12P/Pons-Brooks - Comet (Outburst)

12P/Pons-Brooks - 2024-03-20 (passing through Pisces) Sun Distance 0.97 AU (approaching) Earth Distance 1.62 AU (242.7 million km)		12P/Pons-Brooks -  2024-03-20 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 180.19 arcsec/hr, Dec -69.74 arcsec/hr)
Annotated CCD Image (50% size, log scale) 2 x 30s exposure (average combine), 3x3 binning, Clear Filter 2024-03-20 20:00 UT (#1199006-07) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		Annotated CCD Image (100% size, log root scale, cropped) 15 x 30s exposure (average combine), 3x3 binning, Clear Filter 2024-03-20 20:04 UT (#1199006-20) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
12P/Pons-Brooks - 2024-03-20 Detail		12P/Pons-Brooks - 2024-03-20 Detail
Annotated false-colour CCD Image (50% size, log scale) 15 x 30s exposure (average combine), 3x3 binning, Clear Filter 2024-03-20 20:04 UT (#1199006-20) 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) Inverse Spectrum Image details as left
Images of 12P/Pons-Brooks on Comets 2023 Page >>
Images of 12P/Pons-Brooks on Comets 2024 Page >>

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13P/Olbers - Comet

13P/Olbers - 2024-03-20 (passing through Taurus) Sun Distance 1.88 AU (approaching) Earth Distance 2.32 AU (347.4 million km)		13P/Olbers - 2024-03-20 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 47.38 arcsec/hr, Dec 54.69 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-03-20 20:18 UT (#1199023-25) 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) 10 x 60s exposure (average combine), 3x3 binning, Clear Filter 2024-03-20 20:22 UT (#1199023-32) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of 13P/Olbers on Comets 2024 Page >>

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AT 2024eim - Type YSO? Transient in M42

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NGC 1122 - Spiral Galaxy with Type Ia Supernova 2024dru

NGC 1122 with SN 2024dru (Perseus) SN 2024dru (Type: Ia, z=0.012005) discovered 2024-03-02.240 UT by ATLAS Alias: ATLAS24dcs Discovery Magnitude 15.97 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Mag 19.23  ( TNS 2024dru )

NGC 1122 with SN 2024dru - 2024-03-20 (T+18.6d) Image below (2024-03-20.856) was taken 18.6 days after discovery of 2024dru Position of reported SN (not separately visible) is indicated by white cross-hairs. Measured Magnitude, Nucleus+SN +14.13 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-03-20 20:41 UT (#1199035-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 1122 with SN 2024dru - 2024-03-20 (T+18.6d) Position of reported SN (not separately visible) is indicated by white cross-hairs.

Annotated CCD Image (175% size, log scale, cropped) Image details as above

Images of SN 2024dru (in NGC 1122) on Supernova 2024 Page >>

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UGC 2964 - Spiral Galaxy with Transient AT 2024epz

UGC 2964 with AT 2024epz (Taurus) AT 2024epz (Type: unk) discovered 2024-03-19.284 UT by ATLAS Alias: ATLAS24efj Discovery Magnitude 18.42 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Mag 18.68  ( TNS 2024epz )

UGC 2964 - Spiral Galaxy with AT 2024epz

Annotated CCD Image (50% size, square root scale) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-03-20 21:02 UT (#1199042-45) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 2964 with AT 2024epz - 2024-03-20 (T+1.6d) Image below (2024-03-20.872) was taken 1.6 days after discovery of 2024epz Position of reported transient (faint) is indicated by white cross-hairs.

Annotated CCD Image (150% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2024-03-20 21:02 UT (#1199042-45) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2024epz (in UGC 2964) on Transient 2024 Page >>

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