21001+2555 GRV 401 AB

21^h 00^m 10.86^s +25° 55' 15.1" P.A. 21.00 sep 49.5 mag 12.63,12.82

Coord 2000	21001+2555	Discov num	GRV 401	Comp	AB	Coord arcsec 2000	21 00 10.86 +25 55 15.1
Date first	1893	Date last	2015	Obs	9
Pa first	22	Pa last	21.2	P.A. Now (θ)	21.2°
Sep first	50.1	Sep last	49.481	Sep. Now (ρ)	49.481"
Mag pri	12.63	Mag sec	12.82	delta mag (ΔM)	0.19	Spectral class
Pri motion ra	-013	Sec motion ra	-013
Pri motion dec	-020	Sec motion dec	-023
Notes	N (See Notes)

rPM=0.114 (< 0.3, Physical double)

This double is physical.

21001+2555 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			21 00 11 +25 55 15	GRV 401 AB	2015	9	21	49.5	12.63	12.82	0.19		<===
Show			21 00 12 +25 56 01	GRV 401 BC	2015	6	319	51.3	12.82	13.24	0.42

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Vulpecula

Gaia DR2

1844458243387425024

WDS 21001+2555 GRV 401 AB : NOTES

discov_num	notes	refcode
GRV 401	BC: Also known as GRV 402AB.

REFERENCES

refcode	metd	author	reference
Grv2004	Eu -	Greaves, J.	2004MNRAS.355..585G
Grv2004		MNRAS 355, 585, 2004
Grv2005a	Es -	Greaves, J.	...................
Grv2005a	+C	Webb Soc., Double Star Circ. 13, 2005 (GRV 973 - 1147)
Grv2005a		(Note: RA for all WDS designations inadvertently truncated to integer minute)
Grv2005b	Pa -	Greaves, J.	...................
Grv2005b		private communication
Grv2005c	C -	Greaves, J.	2005JDSO....1...41G
Grv2005c		JDSO 1, 41, 2005
Grv2006	-	Greaves, J.	...................
Grv2006		private communication, 2006
Grv2006		(measures done using LSPM-north, see Vizier On-line Data Catalog I/298;
Grv2006		Lepine & Shara 2005)
Grv2006b	Es -	Greaves, J.	...................
Grv2006b		private Communication, 2006
Grv2006b		(Reduction of SDSS data. Calculated position is to J2000, but actual observation
Grv2006b		epoch is unknown and proper motion may or may not have been applied.)
Grv2006c	Ey -	Greaves, J.	...................
Grv2006c		private Communication, 2006
Grv2006c		(Reduction of SPM3.3 data. Calculated position is to 1991.25, but actual
Grv2006c		observation epoch is unknown and proper motion may or may not have been applied.)
Grv2008	Es -	Greaves, J.	...................
Grv2008		Webb Soc., Double Star Circ. 16, 2008
Grv2011	C -	Greaves, J.	...................
Grv2011		Webb Soc., Double Star Circ. 19, 2011
Grv2011		These carry a discovery designation of SPM and come from the SPM4 Catalog	2011AJ....142...15G
Grv2019a	Hg u	Greaves, J.	2019JDSO...15...59G
Grv2019a		JDSO 15, 59, 2019
Grv2019b	Hg u	Greaves, J.	2019JDSO...15...77G
Grv2019b		JDSO 15, 59, 2019
Grv2019c	Hg u	Greaves, J.	...................
Grv2019c		private communication, 2019 (17 April 2019 email)
Grv2019d	Hg -	Greaves, J.	.
Grv2019d		private communication, 2019 (4 Nov 2019 email)
Grv2020a	not -	Greaves, J.	.
Grv2020a		private communication, 2020 (14 Mar 2020 email)
Grv2020b	Hg j	Greaves, J.	.
Grv2020b		Webb Soc., Double Star Circ. 28, 23, 2020
Grv2020c	Hg j	Greaves, J.	.
Grv2020c		Webb Soc., Double Star Circ. 28, 35, 2020
Grv2020d	Hg j	Greaves, J.	.
Grv2020d		Webb Soc., Double Star Circ. 28, 39, 2020
Grv2020e	Hg u	Greaves, J.	2020JDSO...16..317G
Grv2020e		JDSO 16, 317, 2020
Grv2020f	Hg	Greaves, J.	2020JDSO...16..362G
Grv2020f		JDSO 16, 362, 2020
Grv2020g	Hg -	Greaves, J.	.
Grv2020g		private communication, 2020 (29 Nov 2020 email)
Grv2020h	Hg -	Greaves, J.	.
Grv2020h		private communication, 2020 (10 Dec 2020 email)
Grv2020i	Hg -	Greaves, J.	.
Grv2020i		private communication, 2020 (12 Dec 2020 email)
Grv2020j	Hg -	Greaves, J.	.
Grv2020j		private communication, 2020 (21 Dec 2020 email)
Grv2021a	not -	Greaves, J.	.
Grv2021a		private communication, 2021 (18 Feb 2021 email)
Grv2021b	not -	Greaves, J.	.
Grv2021b		private communication, 2021 (23 Feb 2021 email)
Grv2021c	Hg+ -	Greaves, J., Rica Romero, F.M. & Otero, S.	2021JDSO...17..137G
Grv2021c	+orb	JDSO 17, 137, 2021
Grv2021d	Hg -	Greaves, J.	.
Grv2021d		private communication, 2021 (23 Aug 2021 email)
Grv2021e	Hg -	Greaves, J.	.
Grv2021e		private communication, 2021 (24 Aug 2021 email)
Grv2022	Hg j	Greaves, J. .
Grv2022		Webb Soc., Double Star Circ. 30, 27, 2022
Grv2023a	Hg -	Greaves, J.	.
Grv2023a		private communication, 2023 (15 Feb 2023 email)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21001+2555	GRV 401	AB	2000	5	21	49.5	12.20	12.40		N D	210010.86+255515.1
21001+2555	GRV 401	AB	2001	6	21	49.5	12.20	12.40		N D	210010.86+255515.1
21001+2555	GRV 401	AB	2015	6	21	49.5	12.63	12.82		N	210010.86+255515.1

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

WDS 21001+2555 GRV 401 AB : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21001+2555 GRV 401 AB : MEASURES

No records found.

WDS 21001+2555 : VIRTUAL EYEPIECE

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

WDS 21001+2555 : ALADIN DSS IMAGE @ 21^h 00^m 10.86^s +25° 55' 15.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21001+2555 GRV 401 AB : 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		21001+2555	GRV 401	AB	21	49.5
Show		21001+2555	GRV 401	BC	319	51.3	1
Show		21010+2616	RAO 620		99	0.4	24
Show		20585+2548	CVR 879		54	26.4	25
Show		21023+2554	SLE 511		8	8.5	29
Show		20583+2609	STJ 51		315	1.2	30
Show		20584+2619	HDS2990	Aa,Ab	280	0.1	34
Show		20584+2619	FMR 247	AB	52	2.5	34
Show		21009+2519	POU5095		296	9.4	37
Show		20589+2522	TDS1109		43	1.8	38
Show		21001+2515	POU5089		22	10.6	40
Show		21024+2523	TDS1112		32	1.2	45
Show		21017+2516	POU5100		167	6.8	45
Show		20577+2624	RAO 24		88	0.8	45
Show		21024+2518	POU5106		125	21.5	48
Show		21020+2515	POU5102	AB	312	18.3	48
Show		21020+2515	POU5103	AC	295	17.9	48
Show		20592+2507	POU5085		177	8.2	50
Show		21031+2523	POU5111		147	12.6	51
Show		20573+2520	POU5078		279	10.3	53
Show		21026+2515	POU5107		353	17.0	53
Show		20591+2504	POU5084		59	15.0	54
Show		21040+2539	SLE 515		348	20.1	54
Show		20571+2521	FMR 232		317	3.6	55
Show		21027+2508	POU5108		25	10.1	56
Show		21041+2533	BKO 484		319	5.7	58
Show		20567+2520	POU5071		131	11.4	60
Show		20582+2654	COU 833		253	2.4	65
Show		21046+2624	GRV 409		19	61.3	67
Show		21030+2457	BKO 482		357	6.0	69
Show		21030+2458	POU5110		147	12.5	70
Show		20589+2448	POU5083		111	8.0	70
Show		21002+2445	POU5090		29	14.7	70
Show		21017+2448	POU5101		348	13.0	71
Show		21054+2545	TDT2733		133	0.4	72
Show		20560+2509	POU5067		25	8.3	74
Show		21033+2454	BKO 483		72	8.4	75
Show		21032+2453	POU5114		356	3.4	75
Show		20597+2438	J 3120		262	3.5	78
Show		20569+2451	POU5073		325	15.0	79
Show		21056+2525	POU5147		161	14.8	80
Show		21047+2504	POU5134		201	14.2	80
Show		21046+2502	POU5133		311	6.2	80
Show		21023+2441	POU5105	AB	181	14.4	81
Show		21023+2441	SLE 512	AC	140	10.3	81
Show		20567+2450	BKO 765		270	6.0	81
Show		21045+2457	POU5131	BD	117	17.8	82
Show		21014+2435	POU5098		83	6.7	83
Show		20565+2450	BKO 764		96	3.4	83
Show		21045+2457	SLE 520	AB	346	34.3	83
Show		21045+2457	SLE 520	AC	145	43.6	83

WDS 21001+2555 : COMPONENTS

	A	B
B	pa=21.2° sep=49.56"
C	pa=351.6° sep=85.61"	pa=321.6° sep=49.11"

21001+2555 A

Coord arcsec 2000

210010.86+255515.1

Mag

12.63

PmRA

-13.00

PmDE

-20.0

21001+2555 B

Coord arcsec 2000	210012.19+255601.3		Coord calc	210012.19+255601.3		Mag	12.82		PmRA	-13.00
PmDE	-23.0		Calc delta mag	0.19

21001+2555 C

Coord arcsec 2000	210009.93+255639.8		Mag	13.24		PmRA	-20.00		PmDE	-13.0
Calc delta mag	0.61		Calc coord	yes