20073+3553 BKO 91 DE

Coord 2000	20073+3553		Discov num	BKO  91		Comp	DE		Coord arcsec 2000	20 07 11.27 +35 53 05.9
Date first	1998		Date last	2015		Obs	8
Pa first	101		Pa last	100.4		P.A. Now (θ)	100.4°
Sep first	6.8		Sep last	6.781		Sep. Now (ρ)	6.781"
Mag pri	13.00		Mag sec	13.20		delta mag (ΔM)	0.2		Spectral class
Pri motion ra	+001		Sec motion ra	+001
Pri motion dec	-001		Sec motion dec	-006
Notes

rPM=0.822 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 07 15 +35 52 42	SEI 892 AB	2015	12	335	15.5	12.10	12.60	0.50
Show			20 07 15 +35 52 42	BKO 91 AC	2015	8	290	12.4	12.10	15.20	3.10
Show			20 07 15 +35 52 42	BKO 91 AD	2015	8	298	51.6	12.10	13.00	0.90
Show			20 07 11 +35 53 06	BKO 91 DE	2015	8	100	6.8	13.00	13.20	0.20		<===

Quintuple system
5 estimated visually detectable stars in this system

Constellation

Cygnus

Gaia DR2

2059098001381992448

No records found.

refcode	metd	author	reference
Bko2002	C -	Ladanyi, T. & Berko, E.	...................
Bko2002		Webb Soc., Double Star Circ. 10, 2002
Bko2003	C u	Ladanyi, T., Berko, E. & Vaskuti, G	...................
Bko2003		Webb Soc., Double Star Circ. 11, 2003
Bko2004	C u	Berko, E., Ladanyi, T. & Vaskuti, G	...................
Bko2004		Webb Soc., Double Star Circ. 12, 2004
Bko2005	C u	Berko, E., Ladanyi, T. & Vaskuti, G	...................
Bko2005		Webb Soc., Double Star Circ. 13, 2005
Bko2008	C u	Berko, E. & Vaskuti, G.	...................
Bko2008		Webb Soc., Double Star Circ. 16, 2008
Bko2008b	C u	Berko, E.	2008JDSO....4..144B
Bko2008b		JDSO 4, 144, 2008
Bko2009	C u	Berko, E.	2009JDSO....5...49B
Bko2009		JDSO 5, 49, 2009
Bko2009b	C u	Berko, E.	2009JDSO....5..168B
Bko2009b		JDSO 5, 168, 2009
Bko2009c	C u	Berko, E.	...................
Bko2009c		Webb Soc., Double Star Circ. 17, 2009
Bko2009d	C u	Berko, E.	2009JDSO....5..189B
Bko2009d		JDSO 5, 189, 2009
Bko2010a	C u	Berko, E.	2010JDSO....6...21B
Bko2010a		JDSO 6, 21, 2010
Bko2010b	C u	Berko, E.	...................
Bko2010b		Webb Soc., Double Star Circ. 18, 2010
Bko2011a	C u	Berko, E.	2011JDSO....7....2B
Bko2011a		JDSO 7, 2, 2011
Bko2011b	C u	Berko, E.	...................
Bko2011b		Webb Soc., Double Star Circ. 19, 29, 2011 (BKO 898 - BKO 980)
Bko2011c	C u	Berko, E.	...................
Bko2011c		Webb Soc., Double Star Circ. 19, 42, 2011 (BKO 981 - BKO1042)
Bko2012	C u	Berko, E.	...................
Bko2012		Webb Soc., Double Star Circ. 20, 2012
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
20073+3553	BKO 91	DE	2002	2	101	6.8	13.00	13.20		D	200711.27+355305.9
20073+3553	BKO 91	DE	2010	4	101	7.2	13.00	13.20			200711.27+355305.9
20073+3553	BKO 91	DE	2015	4	101	6.6	13.00	13.20			200711.27+355305.9

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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