Contains:  Solar system body or event
Lunar Eclipse - 2021-Nov-19 08:58 UT, John Jennings

Lunar Eclipse - 2021-Nov-19 08:58 UT

Lunar Eclipse - 2021-Nov-19 08:58 UT, John Jennings

Lunar Eclipse - 2021-Nov-19 08:58 UT

Equipment

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Acquisition details

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Description

This is my composite of the November 19 lunar eclipse as viewed from telescope in Throckmorton Texas. It's about 6 minutes before totality at 08:58 UT. The star background was shot at another time. I used JPL Horizons data for the positioning of the starfield and eclipse shot. The composite accuracy is within a couple of arc minutes or less as checked by a plate solve on the starfield.

Starfield

LUM_EXP     = 600 / Average luminance exposure time.               
LUM_CNT     = 5 / Luminance images combined.                     
LUM_DARK    = 20 / Darks used for luminance.                      
LUM_FLAT    = 40 / Flats used for luminance.                      
LUM_BIAS    = 0 / Flat-darks used for luminance.                 
LUM_TEMP    = -5 / Set temperature used for luminance.            

Plate Solve for starfield image with Pinpoint

Solving using 2317 image and 1827 catalog stars
Looking up stars in catalog
Solving using 2317 image and 1828 catalog stars
Matched 128 of 2317 image and 1828 catalog stars;
Average residual 0.3 arcsec; order 4

RA 03h 36m 57.5s,  Dec +18° 47' 31.2"       (J2000)

Pos Angle +180° 08.5', FL 1108.5 mm, 0.70"/Pixel


Moon image

EXPOSURE    = 0.10100000000000001 /Exposure time in seconds                        
SET-TEMP    = -5.0000000000000000 /CCD temperature setpoint in C                   
CCD-TEMP    = -4.9000000000000004 /CCD temperature at start of exposure in C       
XPIXSZ      = 3.7599999999999998 /Pixel Width in microns (after binning)          
YPIXSZ      = 3.7599999999999998 /Pixel Height in microns (after binning)         

JPL Horizons Data for position at eclipse
**************************************************************************************************************************************************
 Date__(UT)__HR:MN     R.A._____(ICRF)_____DEC  R.A.___(rfrct-app)__DEC  dRA*cosD d(DEC)/dt  Azi____(r-app)___Elev  L_Ap_Sid_Time    APmag   S-brt
**************************************************************************************************************************************************
2021-Nov-19 08:58  m  03 36 57.95 +18 47 35.6  03 38 16.47 +18 52 19.2  1154.762  429.3670  257.596073  52.187005  06 15 18.0087  -12.632   3.370

(ICRF) /J2000 03 36 57.95 +18 47 35.6

Comments

Histogram

Lunar Eclipse - 2021-Nov-19 08:58 UT, John Jennings