20171+1641 BPM 2087

20^h 17^m 05.61^s +16° 40' 34.3" P.A. 45.00 sep 37.0 mag 14.99,15.18

Coord 2000	20171+1641	Discov num	BPM2087	Comp		Coord arcsec 2000	20 17 05.61 +16 40 34.3
Date first	1995	Date last	2015	Obs	9
Pa first	45	Pa last	45.3	P.A. Now (θ)	45.3°
Sep first	36.7	Sep last	36.952	Sep. Now (ρ)	36.952"
Mag pri	14.99	Mag sec	15.18	delta mag (ΔM)	0.19	Spectral class
Pri motion ra	-067	Sec motion ra	-005
Pri motion dec	-116	Sec motion dec	-024
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.828

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Sagitta

Gaia DR2

1809063971958140928

WDS 20171+1641 BPM 2087 : NOTES

discov_num	notes	refcode
BPM2087	[PM2000] 2246373 + [PM2000] 2246561.	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
20171+1641	BPM2087		1998	2	45	36.6	14.99	15.18		NV	201705.61+164034.3
20171+1641	BPM2087		2001	3	45	36.6	14.99	15.18		NV	201705.61+164034.3
20171+1641	BPM2087		2010	4	44	37.5	14.99	15.18		NV	201705.61+164034.3
20171+1641	BPM2087		2015	5	45	36.9	14.99	15.18		NU	201705.61+164034.3

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

WDS 20171+1641 BPM 2087 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20171+1641 BPM 2087 : MEASURES

No records found.

WDS 20171+1641 : 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 20171+1641 : ALADIN DSS IMAGE @ 20^h 17^m 05.61^s +16° 40' 34.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20171+1641 BPM 2087 : 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		20171+1641	BPM2087		45	37.0
Show		20174+1643	LDS1039		207	126.8	3
Show		20170+1655	J 3070			5.5	15
Show		20159+1655	GWP2932		14	15.0	23
Show		20158+1628	BPM2080		65	82.7	23
Show		20163+1615	CHE 260		201	27.4	28
Show		20191+1647	BPM2105		289	86.8	30
Show		20170+1716	OSO 123	AB	264	10.0	36
Show		20170+1716	OSO 123	AC	349	17.9	36
Show		20170+1716	OSO 123	AD	99	21.1	36
Show		20170+1716	OSO 123	AE	44	26.2	36
Show		20166+1606	CHE 263		140	4.0	36
Show		20171+1604	CHE 270		103	16.1	38
Show		20159+1714	KPP 465		12	3.7	38
Show		20186+1711	BPM2101		265	58.6	38
Show		20193+1619	BPM2108		293	105.0	38
Show		20166+1603	CHE 264		35	28.3	38
Show		20181+1605	BKO 561		91	5.8	39
Show		20165+1602	BKO 558		137	6.2	40
Show		20171+1601	CHE 271		34	26.3	40
Show		20193+1705	BPM2109		198	100.7	40
Show		20182+1604	CHE 291		275	8.3	41
Show		20148+1616	CHE 237		219	21.8	41
Show		20165+1601	BKO 559		36	4.8	41
Show		20143+1648	BPM2070		296	119.8	42
Show		20184+1719	BPM2099		127	114.8	43
Show		20202+1644	SKF2134		231	66.3	44
Show		20186+1600	BPM2102		47	72.1	47
Show		20183+1556	CHE 292		181	15.7	48
Show		20204+1633	KPP 866		348	7.3	49
Show		20144+1611	CHE 227		46	5.2	49
Show		20172+1553	CHE 273	AB	94	26.8	49
Show		20172+1553	BKO 560	BC	199	1.4	49
Show		20181+1555	J 553		20	3.7	49
Show		20179+1553	CHE 283		80	24.5	49
Show		20148+1605	CHE 238		303	24.2	50
Show		20161+1553	CHE 254	AB	133	26.6	50
Show		20161+1553	BKO 556	AC	313	10.2	50
Show		20205+1634	HU 360	AB	3	0.1	50
Show		20205+1634	HU 360	AC	348	7.3	50
Show		20144+1608	CHE 228	AB	309	38.6	51
Show		20144+1608	CHE 228	AC	268	24.4	51
Show		20161+1552	BKO 557		347	5.6	51
Show		20144+1608	BKO 540	BD	134	9.9	51
Show		20181+1552	CHE 289		39	32.5	51
Show		20141+1612	CHE 223		82	8.5	52
Show		20192+1723	J 1247		155	3.1	52
Show		20147+1602	CHE 236		291	21.4	52
Show		20151+1555	CHE 241		49	21.3	54
Show		20181+1736	HJ 2946		237	13.9	54
Show		20139+1611	BPM2066	BC	319	100.1	55

WDS 20171+1641 : COMPONENTS

	A
B	pa=44.1° sep=36.17"

20171+1641 A

Componente originario normalizzato	AB		Coord arcsec 2000	201705.61+164034.3		Mag	14.99		PmRA	-67.00
PmDE	-116.0

20171+1641 B

Componente originario normalizzato	AB		Coord arcsec 2000	201707.36+164100.3		Mag	15.18		PmRA	-5.00
PmDE	-24.0		Calc delta mag	0.19		Calc coord	yes