21175+7658 LDS 1948

21^h 17^m 27.90^s +76° 58' 10.3" P.A. 305.00 sep 8.7 mag 10.12,10.27 Sp G0

Coord 2000	21175+7658	Discov num	LDS1948	Comp		Coord arcsec 2000	21 17 27.90 +76 58 10.3
Date first	1895	Date last	2016	Obs	16
Pa first	308	Pa last	304.7	P.A. Now (θ)	304.7°
Sep first	8.8	Sep last	8.677	Sep. Now (ρ)	8.677"
Mag pri	10.12	Mag sec	10.27	delta mag (ΔM)	0.15	Spectral class	G0 (yellow)
Pri motion ra	-001	Sec motion ra	-001
Pri motion dec	+062	Sec motion dec	+060
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.032 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cepheus

Tycho2

4590-01037-2

Gaia DR2

2278451911120311936

WDS 21175+7658 LDS 1948 : NOTES

discov_num	notes	refcode
LDS1948	HJL 291.	HJL1986

REFERENCES

refcode	metd	author	reference
HJL1986	Pa -	Halbwachs, J.L.	1986A&AS...66..131H
HJL1986		A&AS 66, 131, 1986
HJL1986		(Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986		only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)

DISCOVERER

idgroup	discov	author
1	LDS	Luyten p.m. catalog (from additional DD list)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21175+7658	LDS1948		2000	7	305	8.7	10.12	10.27	G0	DV	211727.90+765810.3
21175+7658	LDS1948		2010	8	305	8.6	10.12	10.27	G0	NVD	211727.90+765810.3
21175+7658	LDS1948		2016	10	305	8.7	10.12	10.27	G0	NV	211727.90+765810.3

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

WDS 21175+7658 LDS 1948 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21175+7658 LDS 1948 : MEASURES

No records found.

WDS 21175+7658 : VIRTUAL EYEPIECE

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WDS 21175+7658 : ALADIN DSS IMAGE @ 21^h 17^m 27.90^s +76° 58' 10.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21175+7658 LDS 1948 : 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		21175+7658	LDS1948		305	8.7
Show		21159+7649	LOC 472		108	3.2	11
Show		21140+7646	LDS1946		35	15.1	17
Show		21168+7642	LDS1947		319	165.7	17
Show		21121+7700	LOC 570	BC	83	0.6	18
Show		21121+7700	LOC 570	AB	109	24.0	19
Show		21121+7700	LOC 570	AC	109	24.5	19
Show		21246+7720	LDS1951		347	2.4	33
Show		21248+7636	LDS1952		76	190.2	34
Show		21092+7719	LOC 474		350	10.6	35
Show		21087+7718	LOC 475		324	5.3	36
Show		21066+7648	LOC 473		147	3.6	39
Show		21121+7619	STT 436		227	12.0	44
Show		21067+7623	KPP1325		281	10.0	52
Show		21276+7744	LOC 486		337	4.2	57
Show		21089+7752	LOC 476		53	1.2	62
Show		21202+7804	KPP4234		212	3.6	67
Show		21288+7756	HU 771		193	2.6	69
Show		21341+7740	LOC 484		235	10.4	69
Show		21248+7551	NSN 744		354	0.9	72
Show		21040+7604	SLW1229		1	16.6	72
Show		21271+7822	UC 4469		188	9.1	90
Show		21278+7830	LOC 487		256	2.1	98
Show		21156+7836	STF2796		42	26.7	98
Show		21037+7827	KPP4222		264	2.0	99
Show		20592+7823	CON 38		237	2.5	103
Show		21321+7507	OSW 63		233	87.1	124
Show		21217+7902	UC 4456		353	30.2	125
Show		21057+7501	TDT2739		1	2.0	125
Show		21021+7855	LOC 477		275	3.4	127
Show		21374+7513	STT 449		127	1.2	128
Show		21290+7901	TDT2985		212	0.5	128
Show		21207+7916	LDS1950	AC	287	5.3	140
Show		20593+7455	A 878		48	2.9	140
Show		21010+7919	MLR 244		188	2.5	150
Show		21002+7432	CBL 530		285	48.6	160
Show		21249+7938	LOC 489		31	1.5	162
Show		21223+7945	MLR 246		47	3.1	168
Show		21138+7409	CBL 91		168	32.7	170
Show		20597+7417	A 879		138	4.4	174
Show		21112+7404	STF2784		345	14.3	177
Show		21087+7342	OSO 141		156	14.7	200
Show		21270+7339	ZUC 15		167	1.9	203
Show		21185+8021	STF2801		271	2.1	204
Show		21309+7342	MLB 425		338	2.0	204
Show		21342+7344	OSW 62		27	119.4	205
Show		21113+7334	CRB 209		143	22.0	206
Show		21291+7330	SHN 251		-1	0.5	214
Show		21070+8030	LOC 479		209	3.5	215
Show		21066+8048	TOK 632		53	999.9	232
Show		21220+7257	TDT2926		74	0.6	242

WDS 21175+7658 : COMPONENTS

	A
B	pa=342.0° sep=5.19"

21175+7658 A

Componente originario normalizzato	AB		Coord arcsec 2000	211727.90+765810.3		Mag	10.12		Spectral class	G0 (yellow)
PmRA	-1.00		PmDE	62.0		Tycho2	4590-01037-2

Tycho2

Tycho2	4590-01037-2	Pflag		RAmdeg	319.36626206	DEmdeg	76.96951978
PmRA	-0.3	PmDE	61.6	E RAmdeg	23	E DEmdeg	24
E pmRA	1.6	E pmDE	1.6	EpRAm	1988.68	EpDEm	1988.44
Num	5	Q RAmdeg	1.4	Q DEmdeg	0.5	Q pmRA	1.3
Q pmDE	0.5	BTmag	10.862	E BTmag	0.045	VTmag	10.121
E VTmag	0.034	Prox	86	TYC	T	HIP
CCDM		RAdeg	319.36625972	DEdeg	76.96937639	EpRA 1990	1.73
EpDE 1990	1.62	E RAdeg	23.5	E DEdeg	25.2	Posflg
Corr	0.0

21175+7658 B

Componente originario normalizzato	AB		Coord arcsec 2000	211727.42+765815.2		Mag	10.27		PmRA	-1.00
PmDE	60.0		Tycho2	4590-01037-1		Calc delta mag	0.15		Calc coord	yes

Tycho2

Tycho2	4590-01037-1	Pflag		RAmdeg	319.35759282	DEmdeg	76.97089350
PmRA	0.0	PmDE	59.0	E RAmdeg	27	E DEmdeg	28
E pmRA	1.6	E pmDE	1.6	EpRAm	1987.63	EpDEm	1987.42
Num	5	Q RAmdeg	0.6	Q DEmdeg	0.5	Q pmRA	0.6
Q pmDE	0.6	BTmag	11.164	E BTmag	0.056	VTmag	10.269
E VTmag	0.038	Prox	86	TYC	T	HIP
CCDM		RAdeg	319.35759194	DEdeg	76.97075556	EpRA 1990	1.72
EpDE 1990	1.63	E RAdeg	28.2	E DEdeg	29.4	Posflg
Corr	0.0