David's Astronomy Pages CCD Images - Session 999 (2022-04-17)

Images (S998)

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Images (S1000)

Objects	Session Notes
C/2019 L3 (ATLAS) - Comet     M101 - Spiral Galaxy with Transient AT2022gyw     NGC 3367 - Spiral Galaxy with Type II Supernova 2022ewj NGC 3690 - Spiral Galaxy with Type Ib Supernova 2022gnp         Variable Stars (photometric monitoring) - RZ LMi      Nearby Stars (astrometric monitoring) - None	- Evening session 1.4 hours Session ended early by deteriorating sky transparency & increasing cloud cover     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 7.5°C (min) - CCD Temperature:  -15°C - Notes from 2022-04-17 >>    [ Local Files >> ]

C/2019 L3 (ATLAS) - Comet

C/2019 L3 (ATLAS) (passing through Gemini) Sun Distance 3.67 AU (receeding) Earth Distance 3.78 AU (566.0 million km) Poor sky transparency		C/2019 L3 (ATLAS) - 2022-04-17 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 27.28 arcsec/hr, Dec -18.84 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2022-04-17 22:40 UT (#999020-22) 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 45s exposure (average combine), 3x3 binning, C Filter 2022-04-17 22:43 UT (#999020-28) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2019 L3 (ATLAS) on Comets 2022 Page >>

C/2019 L3 (ATLAS) - False Colour Image Inverse Spectrum

C/2019 L3 (ATLAS)  -  2022-04-17

False Colour CCD Image (70% size, log scale) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2022-04-17 22:43 UT (#999020-28) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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M101 - Spiral Galaxy with Transient AT2022gyw

M101 with AT2022gyw (Ursa Major) AT2022gyw (Type: unk) discovered 2022-04-08.433 UT by ATLAS Alias: ATLAS22lhf  ( Rochester Supernova site | TNS AT2022gyw )

M101 - Spiral Galaxy Position of reported transient (not visible) is shown by white cross-hairs [ Messier Objects  ]

Annotated CCD Image (50% size, square root scale) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-04-17 22:26 UT (#999013-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M101 with AT2022gyw - 2022-04-17 (T+9.5d) Image below (2022-04-17.928) was taken 9.5 days after discovery of 2022gyw Position of reported transient (not visible) is shown by white cross-hairs

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-04-17 22:26 UT (#999013-17) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT2022gyw (M101) on Transients 2022 Page

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NGC 3367 - Spiral Galaxy with Type II Supernova 2022ewj

NGC 3367 with SN2022ewj (Leo) SN 2022ewj (Type: II) discovered 2022-03-19.544 UT by Koichi Itagaki Alias: ATLAS22jhw  ( Rochester Supernova site | TNS 2022ewj )

NGC 3367 with SN2022ewj - 2022-04-17 (T+29.4d) Image below (2022-04-17.959) was taken 29.4 days after discovery of 2022ewj Position of SN (distinct) is shown by white cross-hairs Poor quality image (due to poor sky transparency)

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-04-17 23:10 UT (#999037-41) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

NGC 3367 with SN2022ewj - Previous Image 2022-04-02 (T+14.5d) Image below (2022-04-02.998) was taken 14.5 days after discovery of 2022ewj Position of SN (distinct) is shown by white cross-hairs Measured magnitude +16.37 ?

Annotated CCD Image (125% size, square root scale, cropped) 5 x 180s exposure (average combine), 3x3 binning, C Filter 2022-04-03 00:07 UT (#998035-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022ewj (NGC 3367) on Supernovae 2022 Page

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NGC 3690 - Spiral Galaxy with Type Ib Supernova 2022gnp

NGC 3690 with SN2022gnp (Ursa Major) SN 2022gnp (Type: Ib) discovered 2022-04-05.330 UT by ZTF Alias: ZTF22aadoihx  ( Rochester Supernova site | TNS 2022gnp )

NGC 3690 - Spiral Galaxy Part of ARP 299 & ARP 296 [ ARP Galaxies ]

NGC 3690 with SN2022gnp - 2022-04-17 (T+12.6d) Image below (2022-04-17.914) was taken 12.6 days after discovery of 2022gnp Position of SN (indistinct) is shown by white cross-hairs Poor quality image (seeing / guiding issue)

Annotated CCD Image (150% size, log scale, cropped) 3 x 180s exposure (average combine), 3x3 binning, C Filter 2022-04-17 22:05 UT (#999005-09) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2022gnp (NGC 3690) on Supernovae 2022 Page

NGC 3690 - Earlier Image (2014)

CCD Image (Log Scaled, 150% size, cropped) 5 x 90s sec exposure (average combine), 3x3 binning, C Filter 2014-12-04 01:35 h UT (#574426-30) 12" LX200R  (at f/10.4) + ST-10XME

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