20078+3520 BKO 94 BC

20^h 07^m 48.61^s +35° 20' 30.5" P.A. 46.00 sep 13.5 mag 12.30,15.50

Coord 2000	20078+3520	Discov num	BKO 94	Comp	BC	Coord arcsec 2000	20 07 48.61 +35 20 30.5
Date first	1998	Date last	2015	Obs	8
Pa first	46	Pa last	45.8	P.A. Now (θ)	45.8°
Sep first	13.5	Sep last	13.465	Sep. Now (ρ)	13.465"
Mag pri	12.30	Mag sec	15.50	delta mag (ΔM)	3.2	Spectral class
Pri motion ra	-004	Sec motion ra
Pri motion dec	-006	Sec motion dec
Notes

Nature of this double is uncertain.

20078+3520 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 07 47 +35 20 30	SEI 901 AB	2015	11	86	15.6	12.10	12.30	0.20
Show			20 07 49 +35 20 30	BKO 94 BC	2015	8	46	13.5	12.30	15.50	3.20		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

2059001446193774080

WDS 20078+3520 BKO 94 BC : NOTES

No records found.

REFERENCES

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

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20078+3520	BKO 94	BC	2002	1	46	13.5	12.30	15.50			200748.61+352030.5
20078+3520	BKO 94	BC	2010	4	44	14.3	12.30	15.50			200748.61+352030.5
20078+3520	BKO 94	BC	2015	4	46	13.4	12.30	15.50			200748.61+352030.5

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WDS 20078+3520 BKO 94 BC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20078+3520 BKO 94 BC : MEASURES

No records found.

WDS 20078+3520 : VIRTUAL EYEPIECE

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WDS 20078+3520 : ALADIN DSS IMAGE @

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

Error -22130
Not valid ID.

Error -22130
Not valid ID.
Error -27220
Not valid ID.