20391+1243 BPM 2218

20^h 39^m 06.77^s +12° 43' 17.9" P.A. 252.00 sep 64.4 mag 12.99,13.67

Coord 2000	20391+1243	Discov num	BPM2218	Comp		Coord arcsec 2000	20 39 06.77 +12 43 17.9
Date first	1966	Date last	2015	Obs	7
Pa first	252	Pa last	252	P.A. Now (θ)	252°
Sep first	64.4	Sep last	64.435	Sep. Now (ρ)	64.435"
Mag pri	12.99	Mag sec	13.67	delta mag (ΔM)	0.68	Spectral class
Pri motion ra	-001	Sec motion ra	+001
Pri motion dec	+000	Sec motion dec	-010
Notes	N V (See Notes, Proper motion indicates physical)

rPM=1.015

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Gaia DR2

1755903443743552896

WDS 20391+1243 BPM 2218 : NOTES

discov_num	notes	refcode
BPM2218	[PM2000] 2361255 + [PM2000] 2360960.	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
20391+1243	BPM2218		1999	2	252	64.4	14.11	14.18		NV	203906.77+124317.9
20391+1243	BPM2218		2001	3	252	64.5	14.11	14.18		NV	203906.77+124317.9
20391+1243	BPM2218		2015	4	252	64.4	12.99	13.67		NV	203906.77+124317.9

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

WDS 20391+1243 BPM 2218 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20391+1243 BPM 2218 : MEASURES

No records found.

WDS 20391+1243 : VIRTUAL EYEPIECE

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WDS 20391+1243 : ALADIN DSS IMAGE @ 20^h 39^m 06.77^s +12° 43' 17.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20391+1243 BPM 2218 : 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		20391+1243	BPM2218		252	64.4
Show		20402+1248	BPM2223		290	95.3	17
Show		20405+1240	HEI 278		135	3.4	21
Show		20396+1310	J 912		125	1.8	28
Show		20372+1250	A 1680		295	3.8	29
Show		20373+1230	UC 4235		132	44.9	30
Show		20372+1224	BPM2209		213	61.9	35
Show		20418+1231	STF2715		2	12.4	41
Show		20410+1206	HEI 587		36	1.2	46
Show		20391+1329	TDT2453	Aa,Ab	117	0.5	46
Show		20391+1329	UC 4242	AB	105	45.3	46
Show		20362+1311	BPM2202		129	111.9	51
Show		20426+1244	STF2718	AB	87	8.5	51
Show		20426+1244	STF2718	AC	346	167.2	51
Show		20426+1244	STF2718	BC	346	167.3	51
Show		20370+1203	STF2701		221	2.1	52
Show		20420+1212	BPM2231		330	108.9	52
Show		20413+1327	BPM2228	BC	141	118.1	54
Show		20426+1300	GWP2988		23	19.1	54
Show		20428+1244	BPM2234		331	93.5	54
Show		20408+1332	GWP2982		31	88.8	55
Show		20413+1327	BPM2227	AB	173	68.5	55
Show		20379+1338	KPP2532		26	22.8	58
Show		20414+1157	TDT2472		309	0.5	58
Show		20356+1315	BPM2201		7	74.2	61
Show		20363+1328	BPM2203	AB	231	51.2	62
Show		20363+1328	BPM2204	AC	356	69.3	62
Show		20404+1143	UC 4253		315	19.7	64
Show		20387+1139	GWP2975		166	5.8	65
Show		20419+1150	HEI 588		293	2.3	67
Show		20372+1143	BPM2210		203	101.9	67
Show		20346+1255	BPM2193		288	103.8	68
Show		20364+1339	BPM2206		91	38.2	69
Show		20439+1255	J 1888		158	10.0	70
Show		20421+1341	BPM2232		346	68.4	73
Show		20426+1335	HEI 279	AB	115	25.1	73
Show		20440+1256	DAM 218		342	5.7	73
Show		20426+1335	HEI 279	BC	211	4.1	73
Show		20441+1258	J 1889		10	4.6	74
Show		20340+1244	TDT2378		129	1.4	75
Show		20429+1152	BPM2235		142	114.9	76
Show		20440+1225	HJ 1566	AB	16	16.9	77
Show		20440+1225	HJ 1566	AC	331	32.4	77
Show		20390+1400	BPM2217		287	65.7	77
Show		20375+1130	BPM2213		275	91.7	78
Show		20402+1126	BPM2224		331	104.0	79
Show		20442+1209	BPM2240		148	55.1	82
Show		20337+1222	BPM2187		283	103.7	82
Show		20438+1330	BPM2238		50	66.9	83
Show		20396+1120	BPM2221		275	70.3	84
Show		20397+1406	J 3104		286	6.2	84

WDS 20391+1243 : COMPONENTS

	A
B	pa=251.6° sep=63.01"

20391+1243 A

Componente originario normalizzato	AB		Coord arcsec 2000	203906.77+124317.9		Mag	12.99		PmRA	-1.00
PmDE	0.0

20391+1243 B

Componente originario normalizzato	AB		Coord arcsec 2000	203902.68+124258.0		Mag	13.67		PmRA	1.00
PmDE	-10.0		Calc delta mag	0.68		Calc coord	yes