20151+1555 CHE 241

20^h 15^m 06.45^s +15° 55' 38.0" P.A. 49.00 sep 21.3 mag 12.60,13.50

Coord 2000	20151+1555	Discov num	CHE 241	Comp		Coord arcsec 2000	20 15 06.45 +15 55 38.0
Date first	1910	Date last	2015	Obs	11
Pa first	50	Pa last	48.7	P.A. Now (θ)	48.7°
Sep first	22.0	Sep last	21.303	Sep. Now (ρ)	21.303"
Mag pri	12.60	Mag sec	13.50	delta mag (ΔM)	0.9	Spectral class
Pri motion ra	+001	Sec motion ra	+004
Pri motion dec	-015	Sec motion dec	-014
Notes

rPM=0.21 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Gaia DR2

1808624682705059072

WDS 20151+1555 CHE 241 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Che1908	Pa -	Chevalier, Stanislas	.
Che1908		Shanghai Obs. Zo-Se 4, 60, 1908 (corrections described in Bko2011c and Hrt2012b)
Che1909	Pa -	Chevalier, Stanislas	.
Che1909		Shanghai Obs. Zo-Se 5, 86, 1909 (corrections are described in Hrt2012b)
Che1910	Ma j	Chevalier, Stanislas & Tsang Ziang-seng	.
Che1910	+Pa	Shanghai Obs. Zo-Se 6, O5, 1910 (corrections are described in Hrt2012b)
Che1911	Ma -	Chevalier, Stanislas	.
Che1911	+Pa	Shanghai Obs. Zo-Se 7, B1, 1911 (corrections are described in Hrt2012b)
Che1925	Pa -	Chevalier, Stanislas	1925JO......8...65G
Che1925		J. Obs. 8, 65, 1925

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20151+1555	CHE 241		1910	1	50	22.0	10.18	11.00			201506.44+155538.7
20151+1555	CHE 241		2008	2	49	21.4	10.18	11.00			201506.44+155538.7
20151+1555	CHE 241		2010	6	49	21.3	12.60	13.50			201506.45+155538.0
20151+1555	CHE 241		2015	7	49	21.3	12.60	13.50			201506.45+155538.0

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

WDS 20151+1555 CHE 241 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20151+1555 CHE 241 : MEASURES

No records found.

WDS 20151+1555 : VIRTUAL EYEPIECE

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WDS 20151+1555 : ALADIN DSS IMAGE @ 20^h 15^m 06.45^s +15° 55' 38.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20151+1555 CHE 241 : 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		20151+1555	CHE 241		49	21.3
Show		20151+1552	BKO 543		325	6.4	4
Show		20147+1602	CHE 236		291	21.4	9
Show		20146+1600	CHE 233		269	15.7	10
Show		20145+1555	CHE 230	AB	253	20.5	10
Show		20145+1555	BKO 542	BC	179	7.9	10
Show		20148+1605	CHE 238		303	24.2	11
Show		20161+1552	BKO 557		347	5.6	15
Show		20141+1553	BPM2068		355	49.0	15
Show		20161+1553	CHE 254	AB	133	26.6	16
Show		20161+1553	BKO 556	AC	313	10.2	16
Show		20144+1608	CHE 228	AB	309	38.6	17
Show		20144+1608	CHE 228	AC	268	24.4	17
Show		20144+1608	BKO 540	BD	134	9.9	17
Show		20145+1541	CHE 231		266	14.6	18
Show		20154+1538	CHE 243	AB	222	24.0	18
Show		20154+1538	CHE 243	AC	205	26.6	18
Show		20139+1549	CHE 219		60	10.6	19
Show		20144+1611	CHE 227		46	5.2	19
Show		20157+1537	CHE 247			4.6	21
Show		20165+1602	BKO 558		137	6.2	21
Show		20153+1535	CHE 242		358	13.8	21
Show		20165+1601	BKO 559		36	4.8	22
Show		20148+1616	CHE 237		219	21.8	22
Show		20141+1612	CHE 223		82	8.5	22
Show		20158+1536	BKO 551		62	4.9	22
Show		20166+1603	CHE 264		35	28.3	23
Show		20135+1555	CHE 213		34	22.8	23
Show		20159+1535	CHE 252		304	37.5	23
Show		20157+1534	BKO 547		91	4.4	24
Show		20161+1537	CHE 255		216	24.6	24
Show		20138+1609	BKO 536		256	8.8	24
Show		20139+1611	BPM2065	AB	37	72.8	24
Show		20139+1611	BPM2066	BC	319	100.1	24
Show		20166+1606	CHE 263		140	4.0	24
Show		20137+1609	STF2651	AB	279	0.9	24
Show		20137+1609	SHY 768	AC	84	999.9	24
Show		20163+1538	CHE 261	AB	41	18.3	25
Show		20163+1538	CHE 261	AC	111	23.8	25
Show		20137+1608	CHE 216		290	25.9	25
Show		20144+1533	CHE 229		262	17.5	25
Show		20162+1535	CHE 256		48	27.3	26
Show		20163+1615	CHE 260		201	27.4	26
Show		20134+1604	CHE 212		12	27.6	27
Show		20162+1534	CHE 257		38	29.0	27
Show		20168+1543	CHE 266		51	36.5	28
Show		20136+1613	CHE 214		334	26.9	29
Show		20136+1537	BKO 535	BC	325	5.5	29
Show		20134+1611	CHE 211		340	21.6	29
Show		20136+1537	CHE 215	AB	95	32.4	29
Show		20171+1601	CHE 271		34	26.3	30

WDS 20151+1555 : COMPONENTS

	A
B	pa=47.6° sep=20.85"

20151+1555 A

Componente originario normalizzato	AB		Coord arcsec 2000	201506.45+155538.0		Mag	12.6		PmRA	1.00
PmDE	-15.0

20151+1555 B

Componente originario normalizzato	AB		Coord arcsec 2000	201507.52+155552.1		Mag	13.5		PmRA	4.00
PmDE	-14.0		Calc delta mag	0.9		Calc coord	yes