08391+2000 OCC 637 (HD 73430)

08^h 39^m 03.58^s +19° 59' 59.0" P.A. -1.00 sep 0.0 mag 8.30,10.60 Sp A2

Coord 2000	08391+2000	Discov num	OCC 637	Comp		Coord arcsec 2000	08 39 03.58 +19 59 59.0
Date first	1982	Date last	1982	Obs	0
Pa first	-1	Pa last	-1	P.A. Now (θ)	-1
Sep first	0.0	Sep last	0.044	Sep. Now (ρ)	0.044"
Mag pri	8.30	Mag sec	10.60	delta mag (ΔM)	2.3	Spectral class	A2 (white)
Pri motion ra	-033	Sec motion ra
Pri motion dec	-013	Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 73430		Constellation	Cancer		SAO	80317		Tycho2	1395-00821-1
Gaia DR2	664323280532234240		HD	73430

WDS 08391+2000 OCC 637 (HD 73430) : NOTES

discov_num	notes	refcode
HD 73430	Praesepe KW 143 = NGC 2632 BDA 143
	Praesepe cluster member and occultation binary. Peterson & White	Pts1984
	(1984) found a vector separation in April 1982 of 0".044, which should
	have been resolvable by us unless the system closed. They find
	magnitude differences (noted as unreliable) of 2.5 mag at 445 nm and
	0.35 mag at 750 nm, which if correct would not have prevented us from
	seeing the companion. Incorrectly noted as HD 73460 in text, although
	the tabular information is correct.	Msn1993b

REFERENCES

refcode	metd	author	reference
Msn1993b	Sc j	Mason, B.D., Hartkopf, W.I., McAlister, H.A., & Sowell, J.R.	1993AJ....106..637M
Msn1993b		AJ 106, 637, 1993
Pts1984	O j	Peterson, D.M. & White, N.M.	1984AJ.....89..824P
Pts1984		AJ 89, 824, 1984

DISCOVERER

idgroup	discov	author
1	OCC	Taylor, G.E., O'Leary, B., van Fladern, T.C. Bartholdi, P., Owen, F.,
1	OCC	Hubbard, W.B., Smith, B.A., Smith, S.A., Fallon, F.W. Devinney, E.J. & Oliver, J.
6	OCC	Dunham, D.W., Dunham, J.B., Binzel, R.P., Evans, D.S., Freuh, M., Henry, G.W.,
6	OCC	A'Hearn, M.A., Schnurr, R., Betts, R., Haynes, H., Orcutt, R., Bowell, E., et al.
9	OCC	Vasundhara, R., Jayakumar, K., Velu, C., Appakutty, M., Paranjpye, A.,
9	OCC	Kulkarni, H., Nitsure, P., Prabhunne, M. & Shah, K.
16	OCC	Lin, C.-L., Zhang, Z.-W., Chen, W.P., King, S.-K., Lin, H.-C., Bianco, F.B.,
16	OCC	Lehner, M.J., Coehlo, N., Wang, J.-H., Mondal, S., Alcock, C., Axelrod, T., et al.
17	OCC	Herald, D., Boyle, R., Dunham, D., Hirose, T., Maley, P., Timerson, B., Farris,
17	OCC	T., Frappa, E., Lecacheux, J., Hayamizu, T., Kozubal, M., Nolthenius, R., et al.
22	OCC	Loader, B., Asada, Y., Breit, D., Bradshaw, J., Gault, D., Herald, D., Iverson,
22	OCC	E., Ishida, M., Karasaki, H., Kashiwagura, M., Miyashita, K., Messner, S., et al.
25	OCC	Loader, B. Bradshaw, J., Breit, D., Gault, D., George, T., Herald, D., Iverson,
25	OCC	E., Ishida, M., Karasaki, H., Kashiwagura, M., Kenmotsu, K., Lowe, D., et al.
26	OCC	George, T., Timerson, B., Cooke, B., Degenhardt, S., Dunham, D.W., Messner, S.,
26	OCC	Suggs, R., Venable, R. & Warren, W.H.
27	OCC	George, T., Timerson, B., Beard, T., Blank, T., Dantowitz, R., Davis, J.,
27	OCC	di Cicco, D., Dunham, D.W., Hill, M., Sliski, A. & Sumner, R.
28	OCC	Bulder, H., Loader, B., Herald, D., Messner, S., Ling, A., Raab, H.,
28	OCC	Culbertson, B., Black, S., Ishida, M., Ohno, T., & Miyashita, K.
29	OCC	George, T., Timerson, B., Degenhardt, S., Bracken, C., Cadmus, R., Carcich, A.,
29	OCC	Centala, J., Modic, R., & Slauson, D.
30	OCC	Loader, B., Asada, Y., Bradshaw, J., Breit, D., Fuertes, J., Gault, D., George,T.,
30	OCC	Graham, P., Herald, D., Holenstein, B., Iverson, E., Ishida, M., et al.
31	OCC	George, T., Timerson, B., Brooks, J., Conrad, S., Dunham, J.B., Dunham, D.W.,
31	OCC	Jones,R., Lipka, T.R., Thomas, W., Warren, W.J., Jr., Wasson, R. & Wisniewski, J.
48	OCC	Loader, B., Bradshaw, J., Breit, D., Edens, E., Forbes, M., Gault, D., George, T.,
48	OCC	Haymes, T., Herald, D., Holenstein, B., Ito, T., Iverson, E., et al.
49	OCC	Soma, M., Hayamizu, T., Ishida, M., Owada, M., Ida, M., Aikawa, R., Hashimoto, A.,
49	OCC	Horaguchi, T., Kitazaki, K., Uchiyama, S., Uehara, S., Yaeza, A., et al.
50	OCC	Loader, B., Asai, A., Bardecker, J., Bradshaw, J., Breit, D., Buettner, D.,
50	OCC	Chad, C., Denyer, P., Edens, E., Forbes, M., Gault, D., George, T., et al.
53	OCC	Loader, B., Anderson, P., Asai, A., Bradshaw, J., Breit, D., Forbes, M.,
53	OCC	Gault, D., George, T., Haymes, T., Herald, D., Ishida, M., Kerr, S., et al.
56	OCC	Timerson, B., George, T., Bean, J., Blank, T., Bardecker, J., Dunham, D., Dunham,
56	OCC	J., Gimple, B., Maley, P., Anthony, S., Wiesenborn, C., Hunt, T., Sumner, R. &
56	OCC	Thomas, W.
57	OCC	Hirose, T., Ida, M., Yamamura, H., Uchiyama, S., Hashimoto, A., Aikawa, R.,
57	OCC	Terakubo, K., Sato, M. & Shima, K.
58	OCC	Loader, B., Asada, Y., Asai, A., Bardecker, J., Bourgeois, J., Bradshaw, J., Chad,
58	OCC	C., Ellington, C., Gault, D., Giacchini, B., Haymes, T., Herald, D., Ishida, M.,
58	OCC	Iverson, E., Kerr, S., Manek, J., McKay, G., Messner, S., Pratt, A., Sandy, R.,
58	OCC	Watanabe, H., Yamamura, H. & Yoshida, H.
61	OCC	Perello, C., Frappa, E., Janik, T., Kattentidt, B., Polak, J., Rottenborn, M. &
61	OCC	Selva, A.
66	OCC	Gault, D., Barry, T., Nosworthy, P., Hanna, W., Messner, S., Oesper, D., Dunford,
66	OCC	R., Trank, R., Preston, S. & Herald, D.
71	OCC	Frappa, E., Zeleny, P., Baruffetti, P., Bendjeddou, A., Bigi, M., Bouazara, O.,
71	OCC	Gacem, A., Khenifer, H.M., Mokhtari, L., Nosal, P., Rayane, H., Selimi, T.E.M.,
71	OCC	Sposetti, S. & Aissa, D.B.
72	OCC	Hayamizu, T., Soma, M., Watanabe, Hi., Asai, A., Watanable, Ha., Akira, A.,
72	OCC	Ida, M., Uchiyama, S., Nagata, T., Yamamura, H., Owada, M. & Yamashita, M.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
08391+2000	OCC 637		1982	0	-1	0.0	8.30	10.60	A2	N	083903.58+195959.0

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WDS 08391+2000 OCC 637 (HD 73430) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 08391+2000 OCC 637 (HD 73430) : MEASURES

No records found.

WDS 08391+2000 (HD 73430) : 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 08391+2000 (HD 73430) : ALADIN DSS IMAGE @ 08^h 39^m 03.58^s +19° 59' 59.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 08391+2000 OCC 637 (HD 73430) : 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		08391+2000	OCC 637		-1	0.0
Show		08397+2005	COU 47		140	0.6	11
Show		08384+2006	BOV 36		97	1.0	12
Show		08393+2013	BOV 38		18	0.3	13
Show		08381+1959	BOV 34		74	0.2	14
Show		08401+2000	PAT 44	Ca,Cb	22	0.3	14
Show		08401+2000	SLE 335	CS	340	137.1	14
Show		08401+2000	ENG 37	AB	150	151.8	15
Show		08401+2000	ENG 37	AC	309	134.0	15
Show		08401+2000	ENG 37	AD	111	134.9	15
Show		08401+2000	SLE 685	AR	150	290.3	15
Show		08401+2000	SLE 335	AS	325	261.7	15
Show		08400+2009	ARN 105	AB	153	91.2	16
Show		08401+2000	CHR 28	Ba,Bb	134	0.4	17
Show		08401+2000	BUP 120	BR	147	140.3	17
Show		08391+1941	S 570	AB	84	57.3	20
Show		08391+1941	S 570	AC	345	178.6	20
Show		08404+2006	PAT 46	CJ	153	0.4	20
Show		08403+2012	BOV 40		289	0.3	22
Show		08403+1947	BOV 41		69	0.1	22
Show		08401+1944	PAT 45		208	0.9	22
Show		08397+1939	HZG 6		55	2.8	23
Show		08377+1946	STF1249		40	24.9	25
Show		08404+1940	S 572	CD	91	72.6	27
Show		08381+2023	SLE 330		10	16.9	27
Show		08404+1940	STF1254	AB	55	20.8	28
Show		08404+1940	STF1254	AC	343	62.5	28
Show		08404+1940	STF1254	AD	44	83.5	28
Show		08404+1940	SMR 30	AE	156	15.9	28
Show		08404+1940	BOV 42	Ba,Bb	25	1.8	28
Show		08401+2023	SLE 334		154	29.1	28
Show		08405+2019	BOV 45		188	0.1	28
Show		08399+1933	BU 584	AB	290	0.9	30
Show		08399+1933	S 571	AD	242	92.1	30
Show		08399+1933	S 571	AG	158	45.7	30
Show		08399+1933	GII 164	Aa,Ab	101	0.2	30
Show		08399+1933	CHR 156	Da,Db	241	0.6	30
Show		08399+1933	BKO 34	DE	3	35.4	30
Show		08399+1933	BU 584	DC	89	99.6	30
Show		08372+2017	BOV 31		234	3.4	32
Show		08408+1940	BOV 47		45	0.1	32
Show	Meleph	08405+1933	S 574	AB	250	134.0	34
Show	Meleph	08405+1933	CIA 28	Aa,Ab	171	0.0	34
Show		08399+2032	TDS 484		104	2.0	35
Show		08396+1926	BOV 39		352	1.1	35
Show		08377+1931	HJ 454	AB	271	36.4	35
Show		08366+1955	SLW 269	AB	296	45.1	36
Show		08366+1955	SLW 268	BC	244	178.5	37
Show		08408+2028	SLW 276		33	22.3	38
Show		08366+2017	SLW 270		84	88.7	39
Show		08382+1922	BOV 35		27	0.2	40

WDS 08391+2000 : COMPONENTS

	A
B	pa=0.0° sep=0.00"

08391+2000 A

Componente originario normalizzato	AB	Name	HD 73430	Coord arcsec 2000	083903.58+195959.0	Mag	8.3
Spectral class	A2 (white)	PmRA	-33.00	PmDE	-13.0	SAO	80317
Tycho2	1395-00821-1	HD	73430	DM	BD+20 2141

Tycho2

Tycho2	1395-00821-1	Pflag		RAmdeg	129.76493793	DEmdeg	19.99974655
PmRA	-34.3	PmDE	-14.3	E RAmdeg	7	E DEmdeg	10
E pmRA	1.2	E pmDE	1.1	EpRAm	1991.03	EpDEm	1990.17
Num	8	Q RAmdeg	0.9	Q DEmdeg	0.7	Q pmRA	0.8
Q pmDE	0.7	BTmag	8.551	E BTmag	0.020	VTmag	8.322
E VTmag	0.016	Prox	999	TYC	T	HIP
CCDM		RAdeg	129.76502167	DEdeg	19.99978056	EpRA 1990	1.73
EpDE 1990	1.42	E RAdeg	7.2	E DEdeg	10.1	Posflg
Corr	0.1

SAO

SAO	80317	DelFlag		RA1950		PmRA1950	-0.002
DE1950		PmDE1950	-0.014	Vmag	8.2	SpType	A2
Double code		Source	35	CatNum	3464	DM	BD+20 2141
DMcomp		BDsup		HD	73430	M HD	0
GC		RA1950rad	2.25228099	DE1950rad	0.35214847	PmRA2000	-0.0021
PmDE2000	-0.01

08391+2000 B

Componente originario normalizzato	AB		Coord arcsec 2000	083903.58+195959.0		Mag	10.6		Calc delta mag	2.3
Calc coord	yes