18121+0258 GRV 231

18^h 12^m 07.08^s +02° 58' 47.6" P.A. 181.00 sep 50.7 mag 12.89,13.75

Coord 2000	18121+0258	Discov num	GRV 231	Comp		Coord arcsec 2000	18 12 07.08 +02 58 47.6
Date first	1953	Date last	2015	Obs	14
Pa first	181	Pa last	181.1	P.A. Now (θ)	181.1°
Sep first	51.8	Sep last	50.735	Sep. Now (ρ)	50.735"
Mag pri	12.89	Mag sec	13.75	delta mag (ΔM)	0.86	Spectral class
Pri motion ra	-015	Sec motion ra	-003
Pri motion dec	-020	Sec motion dec	-006
Notes	U (Proper motion indicates non-physical)

rPM=0.738

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Ophiuchus

Gaia DR2

4469878812645498624

WDS 18121+0258 GRV 231 : NOTES

No records found.

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
18121+0258	GRV 231		2000	2	181	51.0	12.60	13.20		D	181207.08+025847.6
18121+0258	GRV 231		2010	9	181	50.8	12.89	13.75			181207.08+025847.6
18121+0258	GRV 231		2013	10	181	50.8	12.89	13.75		U	181207.08+025847.6
18121+0258	GRV 231		2015	11	181	50.8	12.89	13.75		U	181207.08+025847.6

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

WDS 18121+0258 GRV 231 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18121+0258 GRV 231 : MEASURES

No records found.

WDS 18121+0258 : VIRTUAL EYEPIECE

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WDS 18121+0258 : ALADIN DSS IMAGE @ 18^h 12^m 07.08^s +02° 58' 47.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18121+0258 GRV 231 : 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		18121+0258	GRV 231		181	50.7	1
Show		18128+0243	BAL1958		140	3.9	19
Show		18130+0243	BAL1959	BC	171	13.8	22
Show		18130+0243	BAL1959	AB	31	23.1	22
Show		18130+0243	BAL1959	AC	66	15.4	22
Show		18129+0228	HEI 559		173	0.8	33
Show		18099+0307	BU 637	AB	191	7.2	35
Show		18099+0307	BU 637	AC	245	98.2	35
Show		18099+0307	YSC 132	Aa,Ab	357	0.0	35
Show		18144+0251	BAL1960		176	13.8	36
Show		18103+0235	STF2287	AB	153	22.9	36
Show		18103+0235	BU 638	AD	222	59.7	36
Show		18103+0235	BU 638	AE	344	13.7	36
Show		18103+0235	BU 638	BC	4	1.8	36
Show		18106+0327	BAL2481		108	10.7	37
Show		18104+0232	STF2288		58	15.9	38
Show		18097+0247	BAL1955		174	28.4	38
Show		18139+0332	TDT 750		97	0.7	43
Show		18150+0304	SLE 145		27	11.5	44
Show		18153+0305	SLE 146	AB	151	18.4	49
Show		18153+0305	SLE 146	AC	157	49.8	49
Show		18090+0315	BAL2477		162	18.8	50
Show		18121+0207	BAL1957		231	8.7	51
Show		18152+0229	BAL1961		358	17.4	55
Show		18106+0349	FOX 220		74	6.0	55
Show		18103+0209	DAL 18	AB	274	12.5	57
Show		18103+0209	DAL 18	AC	314	45.0	57
Show		18128+0356	J 3270		232	4.8	58
Show		18147+0342	BAL2483		195	12.8	58
Show		18117+0200	BAL1499		151	6.3	59
Show		18144+0347	SLE 144		221	32.7	60
Show		18105+0354	DOO 70		135	7.7	61
Show		18084+0325	BAL2475		88	5.5	62
Show		18162+0319	J 1269	AB	104	3.4	64
Show		18162+0319	J 1269	AC	355	9.5	64
Show		18123+0154	A 2260	AB	107	1.9	66
Show		18123+0154	RAO 66	AC	72	17.2	66
Show		18097+0354	BAL2478		108	11.9	67
Show		18083+0230	NYS 7	BC	84	16.0	68
Show		18083+0230	BAL1953	AB	122	17.1	69
Show		18077+0317	AG 216		91	2.4	69
Show		18166+0316	J 3325		219	2.5	69
Show		18076+0314	SLE 85		181	11.3	71
Show		18080+0222	WLY 9		94	16.4	71
Show		18096+0400	STF2281	AB	282	0.8	72
Show		18096+0400	STF2281	AB,C	194	68.0	72
Show		18080+0337	ARY 2	AB	359	92.3	74
Show		18080+0337	ARY 2	AC	54	116.2	74
Show		18081+0343	BAL2474		280	15.8	76
Show		18081+0213	BU 636	AB	120	1.4	76
Show		18081+0213	BU 636	AC	93	11.7	76

WDS 18121+0258 : COMPONENTS

	A
B	pa=181.1° sep=50.73"

18121+0258 A

Componente originario normalizzato	AB		Coord arcsec 2000	181207.08+025847.6		Mag	12.89		PmRA	-15.00
PmDE	-20.0

18121+0258 B

Componente originario normalizzato	AB		Coord arcsec 2000	181207.02+025756.9		Mag	13.75		PmRA	-3.00
PmDE	-6.0		Calc delta mag	0.86		Calc coord	yes