18456+1604 BPM 820

18^h 45^m 38.94^s +16° 03' 34.7" P.A. 18.00 sep 61.6 mag 15.54,15.88

Coord 2000	18456+1604	Discov num	BPM 820	Comp		Coord arcsec 2000	18 45 38.94 +16 03 34.7
Date first	1990	Date last	2015	Obs	9
Pa first	18	Pa last	18.2	P.A. Now (θ)	18.2°
Sep first	61.8	Sep last	61.598	Sep. Now (ρ)	61.598"
Mag pri	15.54	Mag sec	15.88	delta mag (ΔM)	0.34	Spectral class
Pri motion ra	-020	Sec motion ra	-010
Pri motion dec	-015	Sec motion dec	-001
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.688

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Hercules

Gaia DR2

4510792945984491136

WDS 18456+1604 BPM 820 : NOTES

discov_num	notes	refcode
BPM 820	[PM2000] 1560170 + [PM2000] 1560342.	Gvr2010

REFERENCES

refcode	metd	author	reference
Gvr2010	Pa -	Gavras, P. Sinachopoulos, D., Le Campion, J.F., & Cucourant, C.	2010A&A...521A 4G
Gvr2010	+T	A&A 521, A4, 2010
Gvr2010		(Note: mean measures from AC2000.2, CdC2000, USNO-A2.0, Yellow Sky, and M2000
Gvr2010		catalogs, spanning years ~1900-2000)

DISCOVERER

idgroup	discov	author
1	BPM	Bordeaux PM2000 catalogue (main catalog: separation < 2')

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18456+1604	BPM 820		1998	2	18	61.6	15.82	15.84		NV	184538.94+160334.7
18456+1604	BPM 820		2001	3	18	61.7	15.82	15.84		NV	184538.94+160334.7
18456+1604	BPM 820		2010	4	19	62.0	15.54	15.88		NV	184538.94+160334.7
18456+1604	BPM 820		2015	5	18	61.7	15.54	15.88		NV	184538.94+160334.7

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

WDS 18456+1604 BPM 820 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18456+1604 BPM 820 : MEASURES

No records found.

WDS 18456+1604 : VIRTUAL EYEPIECE

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WDS 18456+1604 : ALADIN DSS IMAGE @ 18^h 45^m 38.94^s +16° 03' 34.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18456+1604 BPM 820 : 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		18456+1604	BPM 820		18	61.6
Show		18449+1606	HEI 173		305	3.7	13
Show		18439+1601	OSO 103	AB	121	5.0	26
Show		18439+1601	OSO 103	AC	44	8.9	26
Show		18439+1601	OSO 103	AD	25	14.1	26
Show		18439+1601	OSO 103	AE	150	16.4	26
Show		18439+1601	OSO 103	AF	233	17.4	26
Show		18470+1541	GII 5		102	8.3	30
Show		18481+1557	BPM 835		272	105.6	37
Show		18475+1537	HU 584	Aa,Ab	5	0.3	38
Show		18475+1537	GII 20	AB	184	0.3	38
Show		18464+1641	HEI 261		102	2.4	39
Show		18477+1539	BPM 831		340	117.9	39
Show		18484+1542	BPMA 61		54	281.7	45
Show		18489+1615	STF2400	AB	159	9.7	49
Show		18489+1615	STF2400	AD	157	0.4	49
Show		18489+1615	STF2400	AC	161	10.9	49
Show		18489+1615	STF2400	A,BC	160	11.0	49
Show		18489+1615	STF2400	BC	201	1.0	49
Show		18461+1655	HEI 259		248	1.9	52
Show		18471+1515	HJ 1344		207	13.0	53
Show		18484+1524	J 2150		34	19.9	57
Show		18472+1655	ARN 75		26	65.3	57
Show		18463+1659	HEI 260		301	2.2	57
Show		18466+1659	STF2385	AB	30	5.5	57
Show		18466+1659	MAD 10	AC	26	71.9	57
Show		18476+1655	J 2678		27	5.4	58
Show		18496+1621	BPM 849		245	101.4	60
Show		18497+1629	BRT1311		204	4.3	64
Show		18481+1656	BPM 834		51	119.5	64
Show		18491+1524	BPM 842		278	103.7	64
Show		18502+1603	RAO 399		140	2.8	66
Show		18498+1639	BPM 853		163	102.8	69
Show		18504+1554	BPM 860		174	80.3	70
Show		18503+1626	BPM 859		264	110.0	72
Show		18459+1450	HEI 397		141	1.1	73
Show		18423+1701	GWP2794		68	14.0	76
Show		18500+1519	YSC 12	AB	35	0.5	78
Show		18500+1519	LLO 16	AC	19	11.1	78
Show		18500+1519	LLO 16	AD	225	15.7	78
Show		18506+1525	BPM 862		276	60.3	81
Show		18517+1600	BPM 870		335	90.7	88
Show		18478+1725	BPM 832		244	111.2	88
Show		18436+1439	BPM 809		337	99.3	90
Show		18453+1434	BPM 818		85	115.9	91
Show		18462+1432	BPM 822		228	116.6	92
Show		18394+1540	MIL 5		58	3.2	93
Show		18510+1505	BPMA 63		327	156.2	97
Show		18515+1507	OL 105		157	4.7	97
Show		18506+1458	BPM 863		270	86.3	98
Show		18521+1635	BPM 871		188	76.6	99

WDS 18456+1604 : COMPONENTS

	A
B	pa=17.5° sep=61.37"

18456+1604 A

Componente originario normalizzato	AB		Coord arcsec 2000	184538.94+160334.7		Mag	15.54		PmRA	-20.00
PmDE	-15.0

18456+1604 B

Componente originario normalizzato	AB		Coord arcsec 2000	184540.22+160433.2		Mag	15.88		PmRA	-10.00
PmDE	-1.0		Calc delta mag	0.34		Calc coord	yes