David's Astronomy Pages Images - Session 1008 (2022-05-10)

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C/2019 U5 (PANSTARRS) - Comet C/2021 O3 (PANSTARRS) - Comet (Attempt)     Nova Cas 2021 - Nova (V1405 Cas)     NGC 2880 - Elliptical Galaxy with Transient AT2022jjm (Unconfirmed) NGC 3631 - Spiral Galaxy (ARP 27) with Transient AT2022jle (Attempt)     UGC 3944 - Spiral Galaxy with Type Ia Supernova 2022hkc       - NGC 4545 attempt failed (due to cloud)     Variable Stars (photometric monitoring) - SS Cyg, BL Lac, CY Lyr, ER UMa      Nearby Stars (astrometric monitoring) - 61 Cyg

- All night session (3.9 hours) - Session interrupted by cloud.  Moon 68% phase     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 8.5°C (min) - CCD Temperature:  -15°C - Notes from 2022-05-10 >>

C/2019 U5 (PANSTARRS) - Comet

C/2019 U5 (PANSTARRS) (passing through Bootes) Sun Distance 4.61 AU (approaching) Earth Distance 4.04 AU (604.9 million km)		C/2019 U5 (PANSTARRS) - 2022-05-07, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -73.75 arcsec/hr, Dec -3.70 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2022-05-10 22:23 UT (#1008004-06) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, log scale, cropped) 9 x 60s exposure (average combine), 3x3 binning, C Filter 2022-05-10 22:27 UT (#1008004-12) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2019 U5 (PANSTARRS) on Comets 2022 Page >>

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C/2021 O3 (PANSTARRS) - Comet (Attempt)

C/2021 O3 (PANSTARRS) (passing through Camelopardalis) Sun Distance 0.65 AU Earth Distance 0.61 AU (90.6 million km)		C/2021 O3 (PANSTARRS) - 2022-05-11, Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 179.72 arcsec/hr, Dec 414.28 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 5 x 90s exposure (average combine), 3x3 binning, C Filter 2022-05-11 01:39 UT (#1008073-77) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, log scale, cropped) Image details as left
Images of C/2021 O3 (PANSTARRS) on Comets 2022 Page >>

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Nova Cas 2021 - Nova (V1405 Cas)

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 - 2022-05-10 (T+418.5d) Image below (2022-05-10.946) was taken 418.5 days after discovery of  V1405 Cas Nova is shown by white cross hairs.  Measured magnitude +10.28

Annotated CCD Image (100% size, linear scale, cropped) 5 x 30s exposure (average combine), 3x3 binning, C Filter 2022-05-10 22:44 UT (#1008015-19) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Nova Cas 2021 (V1405 Cas) Spectra - 2022-05-10 (T+418.5d) Note:  Exposure increased to 60s for this and subsequent sessions

Spectra produced in AstroMain using Image taken with Star Analyser 200 5 x 60s exposure (average combine), 2x2 binning, S Filter 2022-05-10 22:50 UT (#1008020-24) 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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NGC 2880 - Elliptical Galaxy with Type unconf Transient AT 2022jjm (Unconfirmed)

NGC 2880 with AT 2022jjm (Ursa Major) AT 2022jjm (Type: unconf) discovered 2022-05-03.594 UT by Shigemi Kato Discovery Magnitude 15  ( Rochester Supernova site | TNS 2022jjm )

NGC 2880 with AT 2022jjm - 2022-05-10 (T+7.4d) Image below (2022-05-10.972) was taken 7.4 days after discovery of 2022jjm Position of reported transient (not distinguishable) is shown by white cross-hairs The transient is not confirmed based on this image

Annotated CCD Image (150% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-05-10 23:28 UT (#1008034-38) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022jjm (NGC 2880) on Transients 2022 Page

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NGC 3631 - Spiral Galaxy (ARP 27) with Transient AT2022jle (Attempt)

NGC 3631 (ARP 27) with AT2022jle (Ursa Major) AT2022jle (Type: unk) discovered 2022-05-02.969 UT by Francesco Doria Discovery Magnitude 14 Discovery made by visual telescopic observation with a 16" f4.5 newtonian telescope. "Observed a tiny star within the NGC 3631's bulge halo, which magnitude may be of 12-15, located approx. 0,2-0,5 arcminutes ESE from the center of the galaxy nucleus"  ( Rochester Supernova site | TNS 2022jle )

NGC 3631 with AT2022jle - 2022-05-11 (T+8.0d) Image below (2022-05-11.006) was taken 8.0 days after discovery of 2022jle Position of reported transient (not distinguishable) is shown by white cross-hairs The Transient is unconfirmed based on this image alone (With no photographic picture of the discovery, it is conjectured that the discover had confused the transient object for the known star object lying WSW from the center of galaxy nucleus )

Annotated CCD Image (125% size, square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2022-05-08 00:38 UT (#1007065-68) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3631 (ARP 27) - Earlier Image (2022-04-22) Pre-Transient

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-04-22 01:31 UT (#1002087-91) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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UGC 3944 - Spiral Galaxy with Type Ia Supernova 2022hkc

UGC 3944 with SN 2022hkc (Lynx) SN 2022hkc (Type: Ia) discovered 2022-04-12.279 UT by ATLAS Alias: ATLAS22lrz Discovery magnitude 17.25  ( Rochester Supernova site | TNS 2022hkc )

UGC 3944 with SN 2022hkc - 2022-05-10 (T+28.7d) Image below (2022-05-10.956) was taken 28.7 days after discovery of 2022hkc Position of SN (bright) is shown by white cross-hairs Measured magnitude +15.36

Annotated CCD Image (150% size, square root scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2022-05-10 23:03 UT (#1008027-29) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022hkc (UGC 3944) on Supernovae 2022 Page >>

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