21121+7700 LOC 570 BC

21^h 12^m 15.62^s +76° 59' 39.4" P.A. 83.00 sep 0.6 mag 17.90,18.70

Coord 2000	21121+7700	Discov num	LOC 570	Comp	BC	Coord arcsec 2000	21 12 15.62 +76 59 39.4
Date first	2015	Date last	2015	Obs	1
Pa first	83	Pa last	82.8	P.A. Now (θ)	82.8°
Sep first	0.6	Sep last	0.646	Sep. Now (ρ)	0.646"
Mag pri	17.90	Mag sec	18.70	delta mag (ΔM)	0.8	Spectral class
Pri motion ra	+027	Sec motion ra	+029
Pri motion dec	+048	Sec motion dec	+043
Notes	T (Parallax indicates physical)

rPM=0.098 (< 0.3, Physical double)

This double is physical.

21121+7700 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			21 12 09 +76 59 47	LOC 570 AB	2015	1	109	24.0	16.90	17.90	1.00
Show			21 12 09 +76 59 47	LOC 570 AC	2015	5	109	24.5	16.90	18.70	1.80
Show			21 12 16 +76 59 39	LOC 570 BC	2015	1	83	0.6	17.90	18.70	0.80		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cepheus

WDS 21121+7700 LOC 570 BC : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Loc2013	C -	Locatelli, G.	.
Loc2013		Il Bollettino Delle Stelle Doppie 7, 28, 2013
Loc2014	P -	Locatelli, G.	.
Loc2014	+E2	Il Bollettino Delle Stelle Doppie 8, 36, 2014
Loc2014b	C j	Locatelli, G.	.
Loc2014b		Il Bollettino Delle Stelle Doppie 9, 12, 2014
Loc2014c	C j	Locatelli, G.	.
Loc2014c	+E2	Il Bollettino Delle Stelle Doppie 11, 20, 2014
Loc2014c	+P
Loc2015a	C j	Locatelli, G.	.
Loc2015a	+E2	Il Bollettino Delle Stelle Doppie 12, 10, 2015
Loc2015a	+P
Loc2015b	C j	Locatelli, G.	.
Loc2015b		Il Bollettino Delle Stelle Doppie 13, 11, 2015
Loc2015c	-	Locatelli, G.	.
Loc2015c		Il Bollettino Delle Stelle Doppie 14, 16, 2015
Loc2016	C -	Locatelli, G.	.
Loc2016	+Pp	Il Bollettino Delle Stelle Doppie 16, 9, 2016
Loc2016b	C j	Locatelli, G.	.
Loc2016b		Il Bollettino Delle Stelle Doppie 17, 16, 2016
Loc2016c	C j	Sordiglioni, G., Mantero, A., Locatelli, G. & Galli, G.	.
Loc2016c		Il Bollettino Delle Stelle Doppie 17, 25, 2016
Loc2016d	C j	Locatelli, G.	.
Loc2016d		Il Bollettino Delle Stelle Doppie 19, 4, 2016
Loc2017a	C j	Locatelli, G.	.
Loc2017a		Il Bollettino Delle Stelle Doppie 20, 19, 2017
Loc2017b	C j	Locatelli, G.	2017OED....19...34L
Loc2017b		El Observador de Estrellas Dobles, Issue #19, 34, 2017
Loc2019	Hg j	Locatelli, G.	2019OED....22...27L
Loc2019		El Observador de Estrellas Dobles, Issue #22, 27, 2019
Loc2019b	Hg j	Locatelli, G.	2019OED....23...39L
Loc2019b		El Observador de Estrellas Dobles, Issue #23, 39, 2019
Loc2019b		Note: pairs already in WDS or WDSS not added.
Loc2019c	Hg j	Locatelli, G.	2019OED....23...63L
Loc2019c		El Observador de Estrellas Dobles, Issue #23, 63, 2019
Loc2019c		Note: pairs already in WDS or WDSS not added.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21121+7700	LOC 570	BC	2015	1	83	0.6	17.90	18.70		T	211215.62+765939.4

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

WDS 21121+7700 LOC 570 BC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21121+7700 LOC 570 BC : MEASURES

No records found.

WDS 21121+7700 : VIRTUAL EYEPIECE

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

WDS 21121+7700 : ALADIN DSS IMAGE @ 21^h 12^m 15.62^s +76° 59' 39.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21121+7700 LOC 570 BC : 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		21121+7700	LOC 570	BC	83	0.6
Show		21121+7700	LOC 570	AB	109	24.0	1
Show		21121+7700	LOC 570	AC	109	24.5	1
Show		21140+7646	LDS1946		35	15.1	14
Show		21159+7649	LOC 472		108	3.2	17
Show		21175+7658	LDS1948		305	8.7	18
Show		21087+7718	LOC 475		324	5.3	22
Show		21092+7719	LOC 474		350	10.6	22
Show		21066+7648	LOC 473		147	3.6	23
Show		21168+7642	LDS1947		319	165.7	25
Show		21121+7619	STT 436		227	12.0	42
Show		21067+7623	KPP1325		281	10.0	42
Show		21246+7720	LDS1951		347	2.4	46
Show		21248+7636	LDS1952		76	190.2	49
Show		21089+7752	LOC 476		53	1.2	54
Show		20557+7648	UC 4331		35	15.6	58
Show		20546+7653	LOC 460		81	6.6	61
Show		21040+7604	SLW1229		1	16.6	63
Show		21276+7744	LOC 486		337	4.2	68
Show		21202+7804	KPP4234		212	3.6	70
Show		20562+7611	UC 4336		300	22.3	75
Show		21288+7756	HU 771		193	2.6	78
Show		21248+7551	NSN 744		354	0.9	82
Show		21037+7827	KPP4222		264	2.0	92
Show		20592+7823	CON 38		237	2.5	94
Show		20550+7547	LDS1942		346	2.7	95
Show		21271+7822	UC 4469		188	9.1	96
Show		21156+7836	STF2796		42	26.7	97
Show		21278+7830	LOC 487		256	2.1	103
Show		21021+7855	LOC 477		275	3.4	120
Show		21057+7501	TDT2739		1	2.0	121
Show		21217+7902	UC 4456		353	30.2	126
Show		21290+7901	TDT2985		212	0.5	132
Show		20593+7455	A 878		48	2.9	134
Show		21321+7507	OSW 63		233	87.1	134
Show		21207+7916	LDS1950	AC	287	5.3	140
Show		21010+7919	MLR 244		188	2.5	144
Show		21002+7432	CBL 530		285	48.6	154
Show		21249+7938	LOC 489		31	1.5	163
Show		20530+7932	TDT2601		350	2.5	163
Show		21223+7945	MLR 246		47	3.1	169
Show		20597+7417	A 879		138	4.4	170
Show		21138+7409	CBL 91		168	32.7	171
Show		21112+7404	STF2784		345	14.3	177
Show		21087+7342	OSO 141		156	14.7	199
Show		20554+8011	LDS1943		314	15.8	199
Show		21185+8021	STF2801		271	2.1	203
Show		21113+7334	CRB 209		143	22.0	206
Show		21270+7339	ZUC 15		167	1.9	209
Show		21309+7342	MLB 425		338	2.0	211
Show		21070+8030	LOC 479		209	3.5	212

WDS 21121+7700 : COMPONENTS

	A	B
B	pa=109.2° sep=23.99"
C	pa=146.1° sep=9.39"	pa=270.4° sep=17.41"

21121+7700 A

Coord arcsec 2000

211208.91+765947.3

Mag

16.9

PmRA

27.00

PmDE

45.0

21121+7700 B

Coord arcsec 2000	211215.62+765939.4		Coord calc	211215.62+765939.4		Mag	17.9		PmRA	27.00
PmDE	48.0		Calc delta mag	1

21121+7700 C

Coord arcsec 2000	211210.46+765939.5		Mag	18.7		PmRA	29.00		PmDE	43.0
Calc delta mag	1.8		Calc coord	yes