18478+3954 GRV 240

18^h 47^m 48.08^s +39° 54' 35.0" P.A. 43.00 sep 15.6 mag 11.10,11.80

Coord 2000	18478+3954	Discov num	GRV 240	Comp		Coord arcsec 2000	18 47 48.08 +39 54 35.0
Date first	1894	Date last	2017	Obs	12
Pa first	44	Pa last	42.8	P.A. Now (θ)	42.8°
Sep first	15.2	Sep last	15.625	Sep. Now (ρ)	15.625"
Mag pri	11.10	Mag sec	11.80	delta mag (ΔM)	0.7	Spectral class
Pri motion ra	+019	Sec motion ra	+018
Pri motion dec	+029	Sec motion dec	+031
Notes

rPM=0.062 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Lyra

Tycho2

3122-00278-1

Gaia DR2

2098282087503933696

WDS 18478+3954 GRV 240 : 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
18478+3954	GRV 240		2000	5	43	15.6	11.10	11.80		D	184748.08+395435.0
18478+3954	GRV 240		2002	6	43	15.6	11.10	11.80		D	184748.08+395435.0
18478+3954	GRV 240		2010	6	43	15.5	11.10	11.80			184748.08+395435.0
18478+3954	GRV 240		2017	7	44	15.6	11.10	11.80			184748.08+395435.0

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

WDS 18478+3954 GRV 240 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18478+3954 GRV 240 : MEASURES

No records found.

WDS 18478+3954 : 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 18478+3954 : ALADIN DSS IMAGE @ 18^h 47^m 48.08^s +39° 54' 35.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18478+3954 GRV 240 : 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		18478+3954	GRV 240		43	15.6
Show		18483+3956	SLW1221		63	49.1	7
Show		18465+3958	LDS4799		70	10.3	17
Show		18483+4018	UC 3676		11	49.2	25
Show		18481+3929	COU1609		202	0.8	26
Show		18457+3942	BU 51	AB	185	74.2	28
Show		18501+4002	HU 1192		44	2.5	28
Show		18457+3942	FYM 51	BD	344	34.6	29
Show		18457+3942	BU 51	BC	297	6.0	29
Show		18453+4005	ROE 50	CF	99	9.9	30
Show		18453+4005	ROE 50	AB	282	4.7	31
Show		18453+4005	ROE 50	AC	120	26.2	31
Show		18453+4005	ROE 50	AD	253	96.6	31
Show		18453+4005	ROE 50	AE	196	93.6	31
Show		18453+4005	BKO 53	AG	156	51.7	31
Show		18453+4005	BKO 53	AH	301	35.7	31
Show		18453+4005	ROE 50	AF	114	35.7	31
Show		18496+4020	UC 3687		160	11.5	33
Show		18443+3940	STFA 37	BC	172	210.9	43
Show		18443+3940	STFA 37	BD	171	212.5	43
Show		18443+3940	STFA 37	BI	137	151.3	43
Show		18443+3940	STF2382	AB	345	2.2	43
Show	Double Double	18443+3940	STFA 37	AB,CD	172	209.4	43
Show		18443+3940	STFA 37	AD	172	208.2	43
Show		18443+3940	STFA 37	AI	137	150.4	43
Show		18443+3940	STFA 37	DI	37	121.6	44
Show		18443+3940	CHR 77	Ca,Cb	225	0.1	44
Show		18443+3940	SHJ 277	CD,F		93.3	44
Show		18443+3940	SHJ 277	CD,G	293	75.1	44
Show		18443+3940	SHJ 277	CD,H	313	95.7	44
Show		18443+3940	STF2383	CD	75	2.3	44
Show		18443+3940	STF2383	CE	334	63.2	44
Show		18443+3940	STFA 37	CI	37	120.4	44
Show		18443+3940	SHJ 277	EF	37	45.4	44
Show		18443+3940	SHJ 277	EG	236	50.0	44
Show		18443+3940	STFA 37	EI	68	108.9	44
Show		18490+3914	COU1610		145	0.4	44
Show		18443+3940	SHJ 277	GH	358	35.8	45
Show		18507+3920	HDS2672		19	0.1	48
Show		18466+4042	HDS2663		65	0.2	50
Show		18452+3914	STF2392	BC	169	26.2	52
Show		18452+3914	STF2392	AB	314	2.8	52
Show		18452+3914	STF2392	AC	173	23.8	52
Show		18436+4020	SLE 122		151	17.9	55
Show		18517+4026	MLB 976		290	5.3	56
Show		18480+3858	ES 2572		66	6.3	57
Show		18487+4052	UC 3680		249	10.3	59
Show		18523+3926	WEI 33		330	100.0	59
Show		18426+3937	HJ 1341		285	8.8	63
Show		18516+4039	KOI5160		171	1.5	63
Show		18466+3853	ES 2021	AB	254	20.2	64

WDS 18478+3954 : COMPONENTS

	A
B	pa=35.4° sep=14.06"

18478+3954 A

Componente originario normalizzato	AB		Coord arcsec 2000	184748.08+395435.0		Mag	11.1		PmRA	19.00
PmDE	29.0		Tycho2	3122-00278-1

Tycho2

Tycho2	3122-00278-1	Pflag		RAmdeg	281.95036216	DEmdeg	39.90972708
PmRA	19.8	PmDE	28.6	E RAmdeg	51	E DEmdeg	46
E pmRA	1.7	E pmDE	1.6	EpRAm	1981.21	EpDEm	1981.91
Num	4	Q RAmdeg	0.5	Q DEmdeg	0.2	Q pmRA	0.5
Q pmDE	0.2	BTmag	11.837	E BTmag	0.087	VTmag	11.131
E VTmag	0.078	Prox	873	TYC	T	HIP
CCDM		RAdeg	281.95030139	DEdeg	39.90966194	EpRA 1990	1.60
EpDE 1990	1.81	E RAdeg	53.7	E DEdeg	49.1	Posflg
Corr	0.0

18478+3954 B

Componente originario normalizzato	AB		Coord arcsec 2000	184748.79+395446.5		Mag	11.8		PmRA	18.00
PmDE	31.0		Calc delta mag	0.7		Calc coord	yes