21071+2508 BKO 768 AC

21^h 07^m 02.77^s +25° 07' 50.8" P.A. 290.00 sep 8.4 mag 14.00,14.50

Coord 2000	21071+2508	Discov num	BKO 768	Comp	AC	Coord arcsec 2000	21 07 02.77 +25 07 50.8
Date first	1998	Date last	2015	Obs	4
Pa first	287	Pa last	290.4	P.A. Now (θ)	290.4°
Sep first	8.4	Sep last	8.38	Sep. Now (ρ)	8.38"
Mag pri	14.00	Mag sec	14.50	delta mag (ΔM)	0.5	Spectral class
Pri motion ra	+022	Sec motion ra	-037
Pri motion dec	-026	Sec motion dec	-001
Notes

rPM=1.731

This double is not physical.

21071+2508 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			21 07 03 +25 07 51	POU 5171 AB	2015	8	337	18.0	14.00	14.20	0.20
Show			21 07 03 +25 07 51	BKO 768 AC	2015	4	290	8.4	14.00	14.50	0.50		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Vulpecula

Gaia DR2

1841310345893024256

WDS 21071+2508 BKO 768 AC : 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
Pou1933	Pa -	Pourteau, M. A.	.
Pou1933		Cat. des etoiles doubles de la zone +24deg de la carte photog. du ciel, 1933
Pou1933		(Obs. de Paris, H. Tessier) [QB821.P7]

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21071+2508	BKO 768	AC	2009	1	290	8.3	14.00	14.50			210702.77+250750.8
21071+2508	BKO 768	AC	2010	4	287	7.6	14.00	14.50			210702.77+250750.8
21071+2508	BKO 768	AC	2015	4	290	8.4	14.00	14.50			210702.77+250750.8

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

WDS 21071+2508 BKO 768 AC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21071+2508 BKO 768 AC : MEASURES

No records found.

WDS 21071+2508 : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 21071+2508 : ALADIN DSS IMAGE @ 21^h 07^m 02.77^s +25° 07' 50.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21071+2508 BKO 768 AC : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		21071+2508	POU5171	AB	337	18.0
Show		21071+2508	BKO 768	AC	290	8.4
Show		21070+2509	POU5170			8.5	2
Show		21071+2507	POU5172	AB	215	13.2	3
Show		21071+2507	POU5173	AC	212	20.2	3
Show		21069+2506	POU5168		231	10.6	3
Show		21072+2511	BKO 769		171	5.7	4
Show		21068+2513	POU5166		302	4.3	7
Show		21075+2502	POU5179		135	6.6	10
Show		21071+2458	POU5175		48	14.0	11
Show		21080+2501	POU5183		61	7.1	15
Show		21063+2457	POU5156		279	5.2	15
Show		21078+2456	POU5182		157	7.3	17
Show		21076+2452	POU5180		303	8.8	18
Show		21081+2518	POU5187		85	5.3	19
Show		21057+2508	COU 130		150	1.3	19
Show		21059+2458	POU5151		28	12.5	20
Show		21056+2510	POU5149		275	16.7	20
Show		21083+2516	POU5189		133	14.5	20
Show		21063+2449	POU5157		86	4.5	21
Show		21060+2451	POU5153		35	4.7	22
Show		21068+2446	POU5167		121	8.7	23
Show		21067+2446	POU5164		96	14.0	23
Show		21088+2508	UC 4389		83	34.2	25
Show		21088+2505	POU5192	AB	39	16.5	25
Show		21088+2505	POU5193	AC	353	16.2	25
Show		21056+2525	POU5147		161	14.8	27
Show		21065+2442	POU5160		188	10.8	27
Show		21090+2510	POU5196		123	8.5	28
Show		21050+2458	GRV 411		349	45.9	29
Show		21051+2454	POU5142	BC	269	6.1	30
Show		21051+2454	POU5141	AB	347	15.6	30
Show		21051+2454	POU5142	AC	327	17.9	30
Show		21053+2447	POU5145		151	9.8	32
Show		21047+2504	POU5134		201	14.2	33
Show		21094+2511	POU5201		19	12.7	33
Show		21086+2443	POU5191		66	12.9	33
Show		21065+2435	POU5159			4.4	34
Show		21053+2444	POU5144		331	16.4	34
Show		21082+2438	BKO 770		125	3.9	34
Show		21046+2502	POU5133		311	6.2	35
Show		21094+2453	POU5199		69	6.9	35
Show		21080+2540	SLE 530		50	8.9	36
Show		21096+2503	POU5204		172	8.1	36
Show		21056+2437	POU5146		352	14.1	37
Show		21045+2457	POU5131	BD	117	17.8	37
Show		21045+2457	SLE 520	AB	346	34.3	37
Show		21045+2457	SLE 520	AC	145	43.6	37
Show		21063+2543	COU 526		153	6.3	37
Show		21071+2430	POU5174		289	12.8	38
Show		21069+2546	SLE 527		163	11.9	39

WDS 21071+2508 : COMPONENTS

	A	B
B	pa=339.4° sep=17.78"
C	pa=292.3° sep=7.69"	pa=183.5° sep=13.75"

21071+2508 A

Coord arcsec 2000

210702.77+250750.8

Mag

PmRA

22.00

PmDE

-26.0

21071+2508 B

Coord arcsec 2000	210702.31+250807.4		Mag	14.2		PmRA	0.00		PmDE	0.0
Calc delta mag	0.2		Calc coord	yes

21071+2508 C

Coord arcsec 2000	210702.25+250753.7		Mag	14.5		PmRA	-37.00		PmDE	-1.0
Calc delta mag	0.5		Calc coord	yes