21309+7020 CSR 2 AB

21^h 30^m 52.00^s +70° 20' 17.4" P.A. 69.00 sep 12.4 mag 10.70,11.04

Coord 2000	21309+7020	Discov num	CSR 2	Comp	AB	Coord arcsec 2000	21 30 52.00 +70 20 17.4
Date first	1894	Date last	2015	Obs	11
Pa first	71	Pa last	68.6	P.A. Now (θ)	68.6°
Sep first	12.4	Sep last	12.37	Sep. Now (ρ)	12.37"
Mag pri	10.70	Mag sec	11.04	delta mag (ΔM)	0.34	Spectral class
Pri motion ra	-004	Sec motion ra	-008
Pri motion dec	-006	Sec motion dec	-007
Notes	U (Proper motion indicates non-physical)

rPM=0.388

This double is not physical.

21309+7020 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			21 30 52 +70 20 17	CSR 2 AB	2015	11	69	12.4	10.70	11.04	0.34		<===
Show			21 30 54 +70 20 22	BKO 773 BC	2015	7	321	10.2	11.00	13.50	2.50

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cepheus

Tycho2

4465-01049-1

Gaia DR2

2272131024932423680

WDS 21309+7020 CSR 2 AB : 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
Csr2006	Tm -	Coster, I.	...................
Csr2006		Webb Soc., Double Star Circ. 14, 2006
Csr2007	Tm u	Coster, I.	...................
Csr2007		Webb Soc., Double Star Circ. 15, 63, 2007
Csr2009	Tm u	Coster, I.	...................
Csr2009		Webb Soc., Double Star Circ. 17, 58, 2009
Csr2016	-	Coster, I.	...................
Csr2016		Webb Soc., Double Star Circ. 24, 40, 2016

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21309+7020	CSR 2	AB	2009	6	69	12.5	10.70	11.04		D	213052.00+702017.4
21309+7020	CSR 2	AB	2010	8	69	12.0	10.70	11.04			213052.00+702017.4
21309+7020	CSR 2	AB	2015	8	69	12.4	10.70	11.04			213052.00+702017.4

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

WDS 21309+7020 CSR 2 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21309+7020 CSR 2 AB : MEASURES

No records found.

WDS 21309+7020 : 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 21309+7020 : ALADIN DSS IMAGE @ 21^h 30^m 52.00^s +70° 20' 17.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21309+7020 CSR 2 AB : 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		21309+7020	CSR 2	AB	69	12.4
Show		21309+7020	BKO 773	BC	321	10.2	1
Show		21322+7025	KPP2361		247	20.3	8
Show		21289+7024	BKO 772		96	11.7	11
Show		21327+7009	MLB 366		151	2.8	15
Show		21319+7034	H 5 28	AB	342	79.2	17
Show		21319+7034	H 5 28	AC	169	132.9	17
Show	Alfirk	21287+7034	LAB 6	Aa,Ab	226	0.2	18
Show	Alfirk	21287+7034	STF2806	AB	250	13.6	18
Show		21274+7028	CSR 1		286	7.7	20
Show		21275+7028	SHR 1		141	11.5	20
Show		21363+7025	MLB 368		77	4.5	28
Show		21331+7059	MLB 367		108	3.6	42
Show		21399+6953	KPP1602		78	12.2	54
Show		21362+7115	MLR 249		263	1.3	61
Show		21277+7119	LDS1953		116	11.5	61
Show		21209+6944	MLB 365		47	5.1	63
Show		21326+7134	HJ 3044		75	7.6	74
Show		21201+7112	HJ 3027		128	34.2	75
Show		21195+6928	MLB 304		47	5.2	79
Show		21148+7003	MLB 364		59	5.2	84
Show		21488+6947	TDT3168		81	2.1	98
Show		21115+7050	HDS3019	AB	136	0.3	101
Show		21391+6846	MLB 305		82	6.1	105
Show		21480+6920	STF2835		272	1.9	108
Show		21343+7210	TDT3036		161	1.2	111
Show		21267+7211	TDT2971		116	1.9	113
Show		21233+7207	LSC 98		222	0.1	113
Show		21114+7140	OSO 143		277	16.6	125
Show		21403+6823	HU 968		147	1.3	128
Show		21502+7146	A 1225		193	1.1	128
Show		21257+7233	HJ 3035	AB	127	23.2	135
Show		21257+7233	HJ 3035	AC	202	24.2	135
Show		21431+7225	NSN 747		59	1.0	138
Show		21399+6808	STF2823		254	1.5	141
Show		21176+6818	YUN 1	AB	92	9.0	142
Show		21176+6818	CON 40	CD	69	1.0	142
Show		21157+6821	BVD 135		310	24.9	144
Show		21276+7247	LDS1954		4	6.0	148
Show		21363+7247	HJ 3051		183	13.5	149
Show		21320+7256	LDS1955		67	3.1	156
Show		21225+6751	TDT2933		157	0.6	157
Show		21290+6744	TDT2986		223	0.5	157
Show		21344+7300	OSW 61		183	87.2	161
Show		21220+7257	TDT2926		74	0.6	163
Show		21122+6803	KPP4227	AB	298	1.9	170
Show		21498+6802	MLB1094		229	8.5	170
Show		21334+6728	WHC 23		201	15.6	174
Show		21455+6745	HU 970		274	0.4	174
Show		21482+7303	MLB 426		116	2.4	183
Show		21365+6718	KPP4238		336	12.9	185

WDS 21309+7020 : COMPONENTS

	A	B
B	pa=69.1° sep=12.32"
C	pa=37.2° sep=15.45"	pa=344.7° sep=8.19"

21309+7020 A

Coord arcsec 2000	213052.00+702017.4		Mag	10.7		PmRA	-4.00		PmDE	-6.0
Tycho2	4465-01049-1

Tycho2

Tycho2	4465-01049-1	Pflag		RAmdeg	322.71662422	DEmdeg	70.33814044
PmRA	-8.6	PmDE	-6.2	E RAmdeg	28	E DEmdeg	32
E pmRA	1.8	E pmDE	1.9	EpRAm	1989.30	EpDEm	1988.68
Num	3	Q RAmdeg	0.3	Q DEmdeg	1.4	Q pmRA	0.3
Q pmDE	1.4	BTmag	10.852	E BTmag	0.044	VTmag	10.696
E VTmag	0.053	Prox	125	TYC	T	HIP
CCDM		RAdeg	322.71668194	DEdeg	70.33815472	EpRA 1990	1.81
EpDE 1990	1.70	E RAdeg	27.9	E DEdeg	32.6	Posflg
Corr	0.1

21309+7020 B

Coord arcsec 2000	213054.28+702021.8		Coord calc	213054.28+702021.8		Mag	11		PmRA	-6.00
PmDE	-7.0		Tycho2	4465-02319-1		Calc delta mag	0.3

Tycho2

Tycho2	4465-02319-1	Pflag		RAmdeg	322.72624122	DEmdeg	70.33940647
PmRA	-7.2	PmDE	-4.6	E RAmdeg	41	E DEmdeg	48
E pmRA	1.8	E pmDE	2.0	EpRAm	1986.43	EpDEm	1985.41
Num	3	Q RAmdeg	1.2	Q DEmdeg	0.4	Q pmRA	1.2
Q pmDE	0.3	BTmag	11.529	E BTmag	0.071	VTmag	11.039
E VTmag	0.073	Prox	125	TYC		HIP
CCDM		RAdeg	322.72629000	DEdeg	70.33941694	EpRA 1990	1.81
EpDE 1990	1.71	E RAdeg	41.9	E DEdeg	50.2	Posflg
Corr	0.1

21309+7020 C

Coord arcsec 2000	213053.85+702029.7		Mag	13.5		PmRA	-9.00		PmDE	-4.0
Calc delta mag	2.8		Calc coord	yes