20078+3617 SEI 903 (HD 227820)

Coord 2000	20078+3617		Discov num	SEI 903		Comp			Coord arcsec 2000	20 07 51.30 +36 17 46.6
Date first	1895		Date last	2015		Obs	15
Pa first	187		Pa last	187		P.A. Now (θ)	187°
Sep first	11.4		Sep last	11.983		Sep. Now (ρ)	11.983"
Mag pri	9.42		Mag sec	10.85		delta mag (ΔM)	1.43		Spectral class	A1IV (white)
Pri motion ra	-002		Sec motion ra	-003
Pri motion dec	-001		Sec motion dec	-007
Notes

rPM=0.799 Nature of this double is uncertain.

Name	HD 227820		Constellation	Cygnus		Tycho2	2683-01514-1		Gaia DR2	2059207540227204864
HD	227820

No records found.

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		cited in ADS (Aitken Double Star Cat.), 1932

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20078+3617	SEI 903		1998	8	187	11.9	9.42	10.85	A1IV	D	200751.30+361746.6
20078+3617	SEI 903		2002	9	187	11.9	9.42	10.85	A1IV	D	200751.30+361746.6
20078+3617	SEI 903		2010	10	187	11.7	9.42	10.85	A1IV		200751.30+361746.6
20078+3617	SEI 903		2015	11	187	12.0	9.42	10.85	A1IV		200751.30+361746.6

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No records found.


No records found.

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS