David's Astronomy Pages Images - Session 1017 (2022-06-04)

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Images (S1018)

Objects	Session Notes
C/2017 K2 (PANSTARRS) - Comet     AT 2022evv - CV Type Transient     UGC 11252 - Spiral Galaxy     Variable Stars (photometric monitoring) - SS Cyg, AM Her, SS Her, U Her, BL Lac, CY Lyr      Nearby Stars (astrometric monitoring) - Barnards Star	- All night session (2.2 hours) - Summer twilight conditions     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 5.0°C (min) - CCD Temperature:  -15°C - Notes from 2022-06-04 >>

C/2017 K2 (PANSTARRS) - Comet

C/2017 K2 (PANSTARRS) (passing through Ophiuchus) Sun Distance 3.00 AU (approaching) Earth Distance 2.13 AU (318.4 million km)		C/2017 K2 (PANSTARRS) - 2022-06-04 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -59.63 arcsec/hr, Dec -26.03 arcsec/hr)
Annotated CCD Image (50% size, square root scale) 3 x 45s exposure (average combine), 3x3 binning, C Filter 2022-06-04 23:24 UT (#1017011-13) 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 2022-06-04 23:21 UT (#1017005-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C2017 K2 (PANSTARRS) on Comets 2021 Page >>
Images of C2017 K2 (PANSTARRS) on Comets 2022 Page >>

C/2017 K2 (PANSTARRS)  - False Colour Image Inverse Spectrum

C/2017 K2 (PANSTARRS)  -  2022-06-04

False Colour CCD Image (70% size, log scale) 9 x 45s exposure (average combine), 3x3 binning, C Filter 2022-06-04 23:21 UT (#1017005-13) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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AT 2022evv - CV Type Transient

AT2 022evv (Bootes) AT 2022evv (Type: CV) discovered 2022-03-16.697 UT by MASTER Alias: MASTER OT J153156.85+405008.7 Identified in Aladin/Simbad as 2MASS J15315678+4050075, a RR Type variable with a 1 mag variability over 1 hour) Discovery magnitude +15.7 (vs non-detection at mag limit of +18.5 in 2018-05-16)  ( TNS 2022evv )

AT 2022evv - 2022-06-05 (T+80.3d) Image below (2022-06-05.005) was taken 80.3 days after discovery of 2022evv Position of transient (visible) is shown by white cross-hairs Measured magnitude +14.33

Annotated CCD Image (100% size, linear scale, cropped) 5 x 60s exposure (average combine), 3x3 binning, C Filter 2022-06-05 00:10 UT (#1017038-42) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2022evv on Transients 2022 Page

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UGC 11252 - Spiral Galaxy

UGC 11252 (Draco) Poor quality image (bright twilight sky)

Annotated CCD Image (125% size,square root scale, cropped) 4 x 180s exposure (average combine), 3x3 binning, C Filter 2022-06-05 01:07 UT (#1017093-96) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 11252 - Earlier Image (Mar 2022)

Annotated CCD Image (125% size,square root scale, cropped) 2 x 180s exposure (average combine), 3x3 binning, C Filter 2022-03-18 01:48 UT (#987182-86) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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