20301+0914 GRV 345

20^h 30^m 07.70^s +09° 14' 23.1" P.A. 215.00 sep 38.5 mag 12.25,13.19

Coord 2000	20301+0914	Discov num	GRV 345	Comp		Coord arcsec 2000	20 30 07.70 +09 14 23.1
Date first	2000	Date last	2015	Obs	7
Pa first	215	Pa last	214.7	P.A. Now (θ)	214.7°
Sep first	38.6	Sep last	38.503	Sep. Now (ρ)	38.503"
Mag pri	12.25	Mag sec	13.19	delta mag (ΔM)	0.94	Spectral class
Pri motion ra	-011	Sec motion ra	-007
Pri motion dec	-018	Sec motion dec	-017
Notes

rPM=0.195 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Tycho2

1087-00098-1

Gaia DR2

1752755778174851584

WDS 20301+0914 GRV 345 : 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
20301+0914	GRV 345		2000	2	215	38.6	11.90	12.70		D	203007.70+091423.1
20301+0914	GRV 345		2010	3	215	38.5	12.25	13.19			203007.70+091423.1
20301+0914	GRV 345		2015	4	215	38.5	12.25	13.19			203007.70+091423.1

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

WDS 20301+0914 GRV 345 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20301+0914 GRV 345 : MEASURES

No records found.

WDS 20301+0914 : 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 20301+0914 : ALADIN DSS IMAGE @ 20^h 30^m 07.70^s +09° 14' 23.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20301+0914 GRV 345 : 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		20301+0914	GRV 345		215	38.5
Show		20303+0917	J 1883		116	6.5	7
Show		20298+0941	AST 2	AB	94	0.2	28
Show		20298+0941	CRC 37	AD	201	9.2	28
Show		20280+0923	TDT2300		101	0.5	34
Show		20292+0840	GWP2959		280	37.8	37
Show		20325+0858	HJ 2976		266	18.8	40
Show		20325+0951	UC 4209		15	92.1	52
Show		20279+0958	AG 256	AB	351	5.2	55
Show		20279+0958	AG 256	AC	225	99.2	55
Show		20271+0948	J 559		295	2.0	57
Show		20265+0931	UC 4185		277	7.7	57
Show		20297+1018	STF2686		278	25.8	64
Show		20259+0902	J 3084		87	6.0	64
Show		20292+1019	J 3264		358	5.9	67
Show		20269+0826	LDS4843		167	15.3	69
Show		20289+1022	J 3263		54	7.1	72
Show		20270+1008	J 1343		53	2.3	74
Show		20254+0938	VKI 37		103	2.8	75
Show		20293+1029	J 3088		79	7.3	75
Show		20294+1029	DAM 214		298	5.3	75
Show		20262+0827	UC 4180		303	9.7	76
Show		20269+1013	TDT2282		258	3.1	76
Show		20253+0847	NSN 732		235	3.3	77
Show		20295+1033	J 3089		317	4.6	79
Show		20326+1024	J 3092		336	5.3	79
Show		20277+0803	HJ 2966		259	3.6	82
Show		20245+0916	HJ 2959		262	7.4	84
Show		20339+0811	HEI 585		208	1.3	84
Show		20264+0810	GWP2947	AB		43.1	85
Show		20258+0818	UC 4178		267	86.2	86
Show		20284+0746	BRT2186		173	5.0	94
Show		20339+1032	BPM2189		259	69.9	96
Show		20276+0745	J 1297		2	1.0	99
Show		20250+1016	HJ 1509		180	19.2	99
Show		20256+0801	LDS4842		218	101.0	100
Show		20303+1054	BU 63	AB	347	0.9	100
Show		20303+1054	BU 297	AC	340	16.9	100
Show		20322+1054	LDS4848		143	251.1	100
Show		20321+0737	UC 4206		33	73.1	102
Show		20300+0730	NSN 733		133	39.4	105
Show		20230+0929	J 2572		280	4.0	105
Show		20345+1036	BPM2192		343	103.0	105
Show		20301+0730	LDS4846		313	39.4	105
Show		20308+1059	BPM2179		29	77.2	105
Show		20231+0935	DAM 213			8.5	106
Show		20278+0734	GWP2954		290	50.4	106
Show		20264+0741	UC 4183		195	59.7	109
Show		20301+1103	BPM2176		280	53.7	109
Show		20232+0957	TDT2229		227	1.2	112
Show		20285+1110	BPM2171		30	40.3	119

WDS 20301+0914 : COMPONENTS

	A
B	pa=214.4° sep=38.34"

20301+0914 A

Componente originario normalizzato	AB		Coord arcsec 2000	203007.70+091423.1		Mag	12.25		PmRA	-11.00
PmDE	-18.0		Tycho2	1087-00098-1

Tycho2

Tycho2	1087-00098-1	Pflag		RAmdeg	307.53210111	DEmdeg	9.23975838
PmRA	-8.1	PmDE	-13.3	E RAmdeg	67	E DEmdeg	74
E pmRA	2.6	E pmDE	2.5	EpRAm	1982.85	EpDEm	1979.53
Num	3	Q RAmdeg	0.4	Q DEmdeg	3.2	Q pmRA	0.4
Q pmDE	3.2	BTmag	12.823	E BTmag	0.217	VTmag	11.679
E VTmag	0.116	Prox	999	TYC		HIP
CCDM		RAdeg	307.53211972	DEdeg	9.23978583	EpRA 1990	1.80
EpDE 1990	1.61	E RAdeg	71.1	E DEdeg	80.1	Posflg
Corr	-0.3

20301+0914 B

Componente originario normalizzato	AB		Coord arcsec 2000	203006.24+091351.4		Mag	13.19		PmRA	-7.00
PmDE	-17.0		Calc delta mag	0.94		Calc coord	yes