07021+2148 CHR 215 (HD 52422)

07^h 02^m 05.53^s +21° 47' 53.1" P.A. 218.00 sep 0.1 mag 8.00,8.30 Sp B9 dist. 273.97 pc (893.69 l.y.)

Coord 2000	07021+2148	Discov num	CHR 215	Comp		Coord arcsec 2000	07 02 05.53 +21 47 53.1
Date first	1994	Date last	2008	Obs	4
Pa first	268	Pa last	218.4	P.A. Now (θ)	218.4°
Sep first	0.1	Sep last	0.146	Sep. Now (ρ)	0.146"
Mag pri	8.00	Mag sec	8.30	delta mag (ΔM)	0.3	Spectral class	B9 (blue-white)
Pri motion ra	-001	Sec motion ra
Pri motion dec	+000	Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 52422	Constellation	Gemini	SAO	78992	HIP	33890
Tycho2	1356-00489-1	Gaia DR2	3367699563492069504	HD	52422	BD	BD+21 1471
Distance	273.97	Distance ly	893.69

WDS 07021+2148 CHR 215 (HD 52422) : NOTES

discov_num	notes	refcode
CHR 215	First detected as an occultation binary by Evans & Edwards.	Evn1983a
	V335 Gem. Primary is eclipsing binary of Algol-type, period 1.76782d.	Zas2014

REFERENCES

refcode	metd	author	reference
Evn1983a	O j	Evans, D.S. & Edwards, D.A.	1983AJ.....88.1845E
Evn1983a		AJ 88, 1845, 1983
Zas2014	-	Zasche, P.	...................
Zas2014		private communication, 2014

DISCOVERER

idgroup	discov	author
1	CHR	Center for High Ang. Res. Astronomy (speckle interferometry systems)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
07021+2148	CHR 215		1999	3	257	0.1	8.00	8.30	B9	N D	070205.53+214753.1
07021+2148	CHR 215		2008	4	218	0.1	8.00	8.30	B9	N D	070205.53+214753.1

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WDS 07021+2148 CHR 215 (HD 52422) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 07021+2148 CHR 215 (HD 52422) : MEASURES

No records found.

WDS 07021+2148 (HD 52422) : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 07021+2148 (HD 52422) : ALADIN DSS IMAGE @ 07^h 02^m 05.53^s +21° 47' 53.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 07021+2148 CHR 215 (HD 52422) : 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		07021+2148	CHR 215		218	0.1
Show		07023+2159	COU 924		313	1.3	12
Show		06596+2154	HJ 405		216	12.1	36
Show		07039+2122	SLE 395		345	11.2	36
Show		07029+2223	J 997		158	2.2	38
Show		07026+2109	SLE 392		307	4.5	40
Show		07046+2117	BRT2368	BC	109	4.5	46
Show		07046+2117	J 1989	AB	256	39.0	47
Show		07002+2227	KPP1476		291	11.1	47
Show		06599+2228	DBR 276		309	4.9	50
Show		07001+2106	OCC 846		-1	0.1	50
Show		07057+2142	HU 454	AB	219	2.1	52
Show		07057+2142	HU 454	AC	44	13.1	52
Show		07043+2102	SLE 397		17	13.8	56
Show		06596+2102	OCC 291		-1	0.1	58
Show		06590+2105	A 2121		122	3.9	62
Show		07027+2249	POU2324		48	14.6	63
Show		07017+2252	POU2295		236	8.0	64
Show		07053+2102	SLE 399		232	11.8	64
Show		07025+2252	POU2319		294	11.5	65
Show		06581+2115	OCC 852		-1	0.1	66
Show		07001+2248	POU2244		96	13.9	66
Show		07026+2253	POU2320		187	9.0	66
Show		07015+2042	J 1917		162	3.1	66
Show		07038+2250	POU2361		139	14.3	67
Show		07014+2254	POU2279		49	9.7	67
Show		07022+2254	POU2315		28	6.2	67
Show		07034+2252	POU2341	AB	94	9.0	68
Show		07034+2252	POU2342	AC	66	12.3	68
Show		07046+2246	POU2382		288	12.8	68
Show		07012+2255	POU2271		67	12.7	68
Show		06582+2229	OCC 820	Aa,Ab	-1	0.1	68
Show		06582+2229	HLA 7	AC	209	7.8	68
Show		06582+2229	HLA 7	AD	227	9.5	68
Show		07048+2245	POU2392	AB	211	16.2	69
Show		07048+2245	POU2393	AC	161	21.3	69
Show		07007+2254	POU2256	AB	150	8.9	69
Show		07007+2254	POU2257	AC	172	21.8	69
Show		06581+2107	OCC 854		-1	0.1	70
Show		07030+2256	POU2331		186	9.8	70
Show		07057+2100	BU 900		267	1.8	70
Show		07016+2258	POU2290		40	14.8	71
Show		07025+2037	SLE 393		50	6.3	71
Show		07014+2259	POU2280		230	11.2	72
Show		07024+2259	POU2317		70	13.8	72
Show		07043+2253	POU2377		175	12.7	73
Show		07021+2300	POU2309		134	9.4	73
Show		07034+2300	POU2340		138	9.6	75
Show		06591+2252	POU2201		136	6.4	76
Show		07049+2042	SLE 398		64	10.1	77
Show		06596+2257	POU2221		111	8.7	77

WDS 07021+2148 : COMPONENTS

	A
B	pa=216.4° sep=0.14"

07021+2148 A

Componente originario normalizzato	AB	Name	HD 52422	Coord arcsec 2000	070205.53+214753.1	Mag	8
Spectral class	B9 (blue-white)	PmRA	-1.00	PmDE	0.0	SAO	78992
HIP	33890	Tycho2	1356-00489-1	HD	52422	BD	BD+21 1471

Tycho2

Tycho2	1356-00489-1	Pflag		RAmdeg	105.52304413	DEmdeg	21.79808769
PmRA	-1.1	PmDE	-0.3	E RAmdeg	5	E DEmdeg	6
E pmRA	0.7	E pmDE	0.7	EpRAm	1991.15	EpDEm	1990.70
Num	19	Q RAmdeg	0.8	Q DEmdeg	0.8	Q pmRA	0.9
Q pmDE	0.9	BTmag	7.908	E BTmag	0.016	VTmag	7.907
E VTmag	0.013	Prox	999	TYC	T	HIP	33890
CCDM		RAdeg	105.52304722	DEdeg	21.79808833	EpRA 1990	1.87
EpDE 1990	1.78	E RAdeg	5.0	E DEdeg	6.3	Posflg
Corr	0.0

SAO

SAO	78992	DelFlag		RA1950		PmRA1950	-0.0006
DE1950		PmDE1950	-0.002	Vmag	8.4	SpType	B9
Double code		Source	35	CatNum	2731	DM	BD+21 1471
DMcomp		BDsup		HD	52422	M HD	0
GC		RA1950rad	1.82866459	DE1950rad	0.38171823	PmRA2000	-0.0007
PmDE2000	0

Hipparcos

Catalog	H	HIP	33890	Proxy		RAhms	07 02 05.53
DEdms	+21 47 53.1	Vmag	7.93	VarFlag	2	R Vmag	H
RAdeg	105.523	DEdeg	21.7981	AstroRef		Plx	2.03
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	52422	BD	BD+21 1471
CD		CP		Dm number	+21 1471	VIred	-0.09
SpType	B9	R SpType		Coord arcsec 2000	070205.53+214753.1

Hipparcos 2

HIP	33890	Sn	5	So	0	Nc	1
RArad	1.8417246185	DErad	0.3804483705	Plx	3.65	PmRA	-1.37
PmDE	1.52	E RArad	0.84	E DErad	0.57	E Plx	0.86
E pmRA	1.01	E pmDE	0.65	Hpmag	7.9358	E Hpmag	0.0027
SHp	0.021	VA	1	BV	-0.011	E BV	0.016
VI	0.01

07021+2148 B

Componente originario normalizzato	AB		Coord arcsec 2000	070205.52+214753.0		Mag	8.3		Calc delta mag	0.3
Calc coord	yes