David's Astronomy Pages CCD Images - Session 740 (2020-01-11)

Images (S739)

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Images (S741)

Objects	Session Notes
HIP 23416 - Star (F0Ia spectral type) C/2017 T2 (PanStarrs) - Comet M101 - Spiral Galaxy K2-18 - Exoplanet Host Star     Variable Stars (photometric monitoring)   - U And, Z And, TT Ari, AM CVn, S Cyy, U Gem,  SS Her, RZ LMi, U Mon, CN Ori,  FU Ori, NV Ori, DY Per, GK Per, RR Tau, SU Tau, EM UMa. - CY Cyg, FO Ori attempts failed     Nearby Stars (astrometric monitoring)  - None	- All night session (9.7 hours total). - Main aims of the session was to test telescope and observatory systems following problems in previous night's session     - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature:  0.5°C (min) (Dew heaters on auto) - CCD Temperature:  -20°C/-25°C  (63%/77% av. power) - Notes from 2020-01-11 >>

HIP 23416 - Star (F0Ia spectral type)

HIP 23416 (Auriga) Alias: 7-Epsilon Aurigae Taken through Star Analyser 200 diffraction grating

Spectrographic CCD Image (46% size, log scale) 5 x 0.5s exposure (average combine), 2x2 binning, S Filter 2020-01-12 17:20 UT (#740382-86) 12" LX200R (at f/10.4) + ST-10XME

HIP 23416 - Spectrograph detail

Spectrographic CCD CCD Image (100% size, cropped, rotated 4.5 deg) Image details as above

HIP 23416 - Uncalibrated Profile

Spectrographic CCD CCD Image (100% size, cropped, rotated 4.5 deg) Image details as above

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C/2017 T2 (PanStarrs) - Comet

C/2017 T2 (PanStarrs) - 2020-01-11  (passing through Perseus) Sun Distance 2.20 AU Earth Distance 1.54 AU (231.0 million km)		C/2017 T2 (PanStarrs) - 2020-01-11, Detail Autoguided on an offset star using Lock Shift set at the comet's rate of motion (Ra -96.78, Dec 13.82 arcsec/hr)
CCD Image (50% size, square root scale) 45s exposure (single frame), 3x3 binning, C Filter 2020-01-11 22:57 UT (#740069) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2		CCD Image (100% size, log scale, cropped) 8 x 45s exposure (average combine), 3x3 binning, C Filter 2020-01-11 23:00 UT (#740069-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
Images of C/2017 T2 (PanStarrs) on Comets 2019 Page

C/2017 T2 (PanStarrs) Composite image showing motion of comet over a 3 hour period

CCD Image (100% size, linear scale, cropped) 2 x 45s exposure (average combine), 3x3 binning, C Filter 2020-01-11 22:56 & 2020-01-12 01:57 UT (#740068 & 155) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

False Colour CCD Image (70% size, log scale) 8 x 45s exposure (average combine), 3x3 binning, C Filter 2020-01-11 23:00 UT (#740069-76) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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M101 - Spiral Galaxy

M101 (Ursa Major) Taken under bright moonlit skies using Optolong L-eNhance dual narrowband filter (Ha, Hb, Oiii) Moon at 49° Altitude, 98% Phase, 68° Separation from M101

CCD Image (70% size, square root scale) 6 x 180s exposure (average combine), 3x3 binning, DB Filter 2020-01-12 03:09 UT (#740209-14) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M101 - Detail

False Colour CCD Image (70% size, square root scale) Inverse Spectrum, Softened (noise reduction) Image details as above

CCD Image (70% size, log scale) Image details as above

Negative CCD Image (70% size, log scale) Image details as above

CCD Image (70% size, linear scale) Image details as above

M101 - Earlier Image (2009)

CCD Image (75% size, cropped)  9 x 60 sec (average combine),  3x3 binning, C Filter 2009-08-24 22:00 h UT  (#386001-10) 12" LX200R  (at f/5.7) + ST-10XME [uncropped]

M101 - Earlier Image (Oct 2011) with Supernova SN 2011fe, 41 days after SN discovery Est. SN Mag +10.5

Annotated CCD Image  (58% size, cropped) 11 x 60 sec exposure (average combine),  3x3 binning, C Filter  2011-10-03 20:28 h UT  (#479003-14) 12" LX200R  (at f/9.7) + ST-10XME

M101 - Earlier Image (2004)

Negative CCD Image Mosaic  (58% size, cropped) Mosaic (1x2), 3 x 2 min (average combine), C Filter 2004-12-11 07:04 h UT (#79063-68) 8" LX200 Classic + ST-7EE

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K2-18 - Exoplanet Host Star

K2-18 (Leo) Parent Star to exoplanet K2-18 ,  located 111 ly from Earth The new planet is just over twice the size of Earth - in a planet category known as a "super Earth" - and has a temperature cool enough to have liquid water, between zero and 40C K2-18b was in news in Sept 2019 with the story "Astronomers have for the first time discovered water in the atmosphere of a planet orbiting within the habitable zone of a distant star" https://www.bbc.co.uk/news/science-environment-49648746

Annotated CCD Image (50% size) 5 x 30s exposure (average combine), 3x3 binning, C Filter 2020-01-12 04:08 UT (#740243-47) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

K2-18 - Detail Magnitude dips associated with K2-18b transits are too small to be seen with my equipment/my skies

Annotated CCD Image (100% size, cropped) Image details as above

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