20446+4041 HJ 1574

Coord 2000	20446+4041		Discov num	HJ 1574		Comp			Coord arcsec 2000	20 44 36.82 +40 40 36.6
Date first	1828		Date last	2014		Obs	7
Pa first	278		Pa last	278.1		P.A. Now (θ)	278.1°
Sep first	3.0		Sep last	7.421		Sep. Now (ρ)	7.421"
Mag pri	11.73		Mag sec	12.58		delta mag (ΔM)	0.85		Spectral class
Pri motion ra	-001		Sec motion ra	-003
Pri motion dec	-001		Sec motion dec	+002
Notes	N (See Notes)

rPM=1 This double is not physical.

Constellation

Cygnus

Tycho2

3170-01155-1

Gaia DR2

2066061753946498816

discov_num	notes	refcode
HJ 1574	HJ 1573 and HJ 1574 are obvious on ALADIN, forming roughly 10" and 8"
	pairs are roughly Herschel's position angles. Burnham's observation of	Bu_1906
	HJ 1574 appears discrepant.

refcode	metd	author	reference
Bu_1906	Ma j	Burnham, S.W.	1906QB821.B972.....
Bu_1906	+M	Burnham Double Star Cat., 1906

idgroup	discov	author
1	HJ	Herschel, J.F.W.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20446+4041	HJ 1574		1828	1	278	3.0	11.73	12.58		N	204436.82+404036.6
20446+4041	HJ 1574		1998	2	278	7.4	11.73	12.58		N	204436.82+404036.6
20446+4041	HJ 1574		2002	3	278	7.4	11.73	12.58		N	204436.82+404036.6
20446+4041	HJ 1574		2013	4	274	9.9	11.73	12.58		N	204436.82+404036.6
20446+4041	HJ 1574		2014	7	278	7.4	11.73	12.58		N	204436.82+404036.6

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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