21381+2339 BKO 490

21^h 38^m 08.43^s +23° 39' 19.3" P.A. 104.00 sep 5.0 mag 13.00,14.00

Coord 2000	21381+2339	Discov num	BKO 490	Comp		Coord arcsec 2000	21 38 08.43 +23 39 19.3
Date first	2000	Date last	2015	Obs	8
Pa first	109	Pa last	103.7	P.A. Now (θ)	103.7°
Sep first	4.9	Sep last	5.011	Sep. Now (ρ)	5.011"
Mag pri	13.00	Mag sec	14.00	delta mag (ΔM)	1	Spectral class
Pri motion ra	-003	Sec motion ra
Pri motion dec	-005	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Pegasus

Gaia DR2

1797522707631884416

WDS 21381+2339 BKO 490 : 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

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21381+2339	BKO 490		2008	1	108	4.8	13.00	14.00			213808.43+233919.3
21381+2339	BKO 490		2010	4	105	5.0	13.00	14.00			213808.43+233919.3
21381+2339	BKO 490		2015	5	104	5.0	13.00	14.00			213808.43+233919.3

If you need more information about this double, apply for a data request form to the WDS.

WDS 21381+2339 BKO 490 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21381+2339 BKO 490 : MEASURES

No records found.

WDS 21381+2339 : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 21381+2339 : ALADIN DSS IMAGE @ 21^h 38^m 08.43^s +23° 39' 19.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21381+2339 BKO 490 : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		21381+2339	BKO 490		104	5.0
Show		21379+2342	POU5444		324	18.9	4
Show		21383+2336	HU 372		249	0.3	5
Show		21378+2339	POU5443	AB	211	19.0	6
Show		21378+2339	BKO 489	AC	120	7.6	6
Show		21378+2346	POU5441		193	7.3	9
Show		21374+2340	HJ 1668		36	8.1	11
Show		21385+2323	POU5445		191	25.9	17
Show		21373+2400	POU5437		106	17.0	24
Show		21398+2352	TDT3095		113	0.6	26
Show		21396+2322	AG 274	AB	153	9.1	27
Show		21396+2322	AG 274	AC	160	62.5	27
Show		21402+2341	POU5455		249	2.8	29
Show		21395+2403	POU5452		288	15.3	32
Show		21398+2317	CVR 913		39	17.1	33
Show		21358+2331	POU5426		315	14.2	34
Show		21384+2413	POU5446		89	8.3	35
Show		21377+2417	POU5442		228	14.7	39
Show		21351+2340	POU5418		198	6.4	42
Show		21356+2403	POU5423		40	3.4	42
Show		21351+2330	TDT3043		62	0.7	43
Show		21373+2423	POU5438	AB	138	16.4	45
Show		21373+2423	BKO 488	AC	235	5.0	45
Show		21352+2358	POU5420		221	15.1	45
Show		21413+2355	CVR 251		164	11.4	47
Show		21385+2429	BKO 626	BC	212	11.9	50
Show		21385+2429	POU5447	AB	256	18.6	50
Show		21386+2429	BKO 627		306	8.6	50
Show		21393+2429	BKO 628		55	3.0	52
Show		21390+2433	POU5450		287	12.0	55
Show		21401+2426	POU5456		264	3.7	55
Show		21422+2338	POU5460		232	14.1	55
Show		21405+2426	BKO 629		170	3.7	57
Show		21358+2428	POU5427		205	8.4	58
Show		21343+2406	POU5411		200	8.5	59
Show		21356+2429	POU5424		64	8.5	60
Show		21355+2427	HU 371		319	0.3	61
Show		21338+2356	POU5409		334	10.6	62
Show		21410+2428	UC 4525		261	23.8	63
Show		21364+2439	POU5431		90	4.2	64
Show		21342+2416	POU5410		251	13.5	65
Show		21429+2345	POU5462		323	10.7	65
Show		21421+2416	POU5459		333	5.1	66
Show		21431+2343	BKO 630		215	10.0	69
Show		21421+2422	POU5461		146	20.6	70
Show		21373+2230	CVR 911		174	10.5	71
Show		21359+2445	POU5429		340	11.5	73
Show		21332+2406	UC 4496		214	16.5	73
Show		21432+2312	J 3144	AB	348	3.4	73
Show		21432+2312	J 3144	AC	129	9.7	73
Show		21392+2451	TDT3084		300	0.8	74

WDS 21381+2339 : COMPONENTS

	A
B	pa=104.9° sep=4.61"

21381+2339 A

Componente originario normalizzato	AB		Coord arcsec 2000	213808.43+233919.3		Mag	13		PmRA	-3.00
PmDE	-5.0

21381+2339 B

Componente originario normalizzato	AB		Coord arcsec 2000	213808.75+233918.1		Mag	14		Calc delta mag	1
Calc coord	yes