18158-1855 OCC 566 (HD 312903)

18^h 15^m 46.30^s -18° 54' 40.3" P.A. -1.00 sep 0.1 mag 9.60,10.60 Sp B3

Coord 2000	18158-1855	Discov num	OCC 566	Comp		Coord arcsec 2000	18 15 46.30 -18 54 40.3
Date first	1978	Date last	1978	Obs	0
Pa first	-1	Pa last	-1	P.A. Now (θ)	-1
Sep first	0.1	Sep last	0.05	Sep. Now (ρ)	0.05"
Mag pri	9.60	Mag sec	10.60	delta mag (ΔM)	1	Spectral class	B3 (blue-white)
Pri motion ra	-001	Sec motion ra
Pri motion dec	-002	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 312903		Constellation	Sagittarius		Tycho2	6272-01145-1		Gaia DR2	4094834915411220992
HD	312903

WDS 18158-1855 OCC 566 (HD 312903) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
OCC1971	O j	Taylor, G.E., O'Leary, B., van Fladern, T.C. Bartholdi, P., Owen, F.,	1971Natur.234..405T
OCC1971		Hubbard, W.B., Smith, B.A., Smith, S.A., Fallon, F.W. Devinney, E.J. & Oliver, J.
OCC1971		Nature 234, 405, 1971 (also summarized in OCC2010)
OCC1972	O j	Hubbard, W.B. & van Flandern, T.C.	1972AJ.....77...65H
OCC1972		AJ 77, 65, 1972
OCC1976	O j	Taylor, G.E., Walker, E.N., Quintanilla, A.R. & Lopez de Coca, M.P.	1976A&A....50..121T
OCC1976		A&A 50, 121, 1976 (also summarized in OCC2010)
OCC1990	O j	Dunham, D.W., Dunham, J.B., Binzel, R.P., Evans, D.S., Freuh, M., Henry, G.W.,	1990AJ.....99.1636D
OCC1990		A'Hearn, M.A., Schnurr, R., Betts, R., Haynes, H., Orcutt, R., Bowell, E., et al.
OCC1990		AJ 99, 1636, 1990 (also summarized in OCC2010)
OCC1993	O j	Sato, I., Soma, M. & Hirose, T.	1993AJ....105.1553S
OCC1993		AJ 105, 1553, 1993 (also summarized in OCC2010)
OCC2001	O -	Vasundhara, R., Jayakumar, K., Velu, C., Appakutty, M., Paranjpye, A.,	2001BASI...29..577V
OCC2001		Kulkarni, H., Nitsure, P., Prabhunne, M. & Shah, K.
OCC2001		Bull. Astr. Soc. India 29, 577, 2001 (also summarized in OCC2010)
OCC2002	O -	Occult. Doubles Cat., D. Dunham, ed.	.
OCC2002		http://www.lunar-occultations.com/iota/iotandx.htm
OCC2008	O j	Ling, A.	2008JRASC.102...15L
OCC2008		JRASC 102, 15, 2008
OCC2009	O u	Herald, D. and Sandy, R.	2009JDSO....5..208H
OCC2009		JDSO 5, 208, 2009
OCC2009b	O j	Lin, C.-L., Zhang, Z.-W., Chen, W.P., King, S.-K., Lin, H.-C., Bianco, F.B.,	2009PASP..121..359L
OCC2009b		Lehner, M.J., Coehlo, N., Wang, J.-H., Mondal, S., Alcock, C., Axelrod, T., et al.
OCC2009b		PASP 121, 359, 2009 (also summarized in OCC2010)
OCC2010	O u	Herald, D., Boyle, R., Dunham, D., Hirose, T., Maley, P., Timerson, B., Farris,	2010JDSO....6...88H
OCC2010		T., Frappa, E., Lecacheux, J., Hayamizu, T., Kozubal, M., Nolthenius, R., et al.
OCC2010		JDSO 6, 88, 2010
OCC2010b	O u	Herald, D., Loader, B. & Parker, S.	2010JDSO....6..150H
OCC2010b		JDSO 6, 150, 2010
OCC2010c	O -	Herald, D., Kashiwagura, M., Loader, B., Messner, S., Sandy, R. & Togashi, H.	2010JDSO....6..152H
OCC2010c		JDSO 6, 152, 2010
OCC2010d	O u	Loader, B., Asada, Y., Breit, D., Bradshaw, J., Gault, D., Herald, D., Iverson,	2010JDSO....6..176L
OCC2010d		E., Ishida, M., Karasaki, H., Kashiwagura, M., Miyashita, K., Messner, S., et al.
OCC2010d		JDSO 6, 176, 2010
OCC2011	O u	George, T., Timerson, B., Coughlin, K. & Fleishman, R.	2011JDSO....7..129G
OCC2011		JDSO 7, 129, 2011
OCC2011b	O u	Loader, B. Bradshaw, J., Breit, D., Gault, D., George, T., Herald, D., Iverson,	2011JDSO....7..159L
OCC2011b		E., Ishida, M., Karasaki, H., Kashiwagura, M., Kenmotsu, K., Lowe, D., et al.
OCC2011b		JDSO 7, 159, 2011
OCC2011c	O u	George, T., Timerson, B., Cooke, B., Degenhardt, S., Dunham, D.W., Messner, S.,	2011JDSO....7..169G
OCC2011c		Suggs, R., Venable, R. & Warren, W.H.
OCC2011c		JDSO 7, 169, 2011
OCC2011d	O -	George, T., Timerson, B., Beard, T., Blank, T., Dantowitz, R., Davis, J.,	2011JDSO....7..175G
OCC2011d		di Cicco, D., Dunham, D.W., Hill, M., Sliski, A. & Sumner, R.
OCC2011d		JDSO 7, 175, 2011
OCC2011e	O j	Bulder, H., Loader, B., Herald, D., Messner, S., Ling, A., Raab, H.,	...................
OCC2011e		Culbertson, B., Black, S., Ishida, M., Ohno, T., & Miyashita, K.
OCC2011e		J. for Occultation Astron., #3, Jul-Sep 2011 (some data also in OCC2008)
OCC2012a	O j	George, T., Timerson, B., Degenhardt, S., Bracken, C., Cadmus, R., Carcich, A.,	2012JDSO....8..306G
OCC2012a		Centala, J., Modic, R., & Slauson, D.
OCC2012a		JDSO 8, 306, 2012
OCC2012b	O u	Loader, B., Asada, Y., Bradshaw, J., Breit, D., Fuertes, J., Gault, D., George,T.,	2012JDSO....8..313L
OCC2012b		Graham, P., Herald, D., Holenstein, B., Iverson, E., Ishida, M., et al.
OCC2012b		JDSO 8, 313, 2012
OCC2013a	O -	George, T., Timerson, B., Brooks, J., Conrad, S., Dunham, J.B., Dunham, D.W.,	2013JDSO....9...88G
OCC2013a		Jones,R., Lipka, T.R., Thomas, W., Warren, W.J., Jr., Wasson, R. & Wisniewski, J.
OCC2013a		JDSO 9, 88, 2013
OCC2013b	O j	Giacchini, B.L., Timerson, B., George, T., Degenhardt, S. & Herald, D.	2013JDSO....9..130G
OCC2013b		JDSO 9, 130, 2013
OCC2013c	O j	Casas, R., Juan, J., Naves, R., Perello, C., Rovira, J., Selva, A. & Schnabel, C.	2013JDSO....9..183C
OCC2013c		JDSO 9, 183, 2013
OCC2013d	O j	Herald, D., Talbot, J., Bradshaw, J., Broughton, J., Hanna, W. & Watson, D.	2013JDSO....9..226H
OCC2013d		JDSO 9, 226, 2013
OCC2013e	O -	Herald, D.	2013JDSO....9..274H
OCC2013e		JDSO 9, 274, 2013
OCC2014a	O -	Loader, B.	2014JDSO...10....2L
OCC2014a		JDSO 10, 2, 2014
OCC2014b	O -	Gault, D.	2014JDSO...10....4G
OCC2014b		JDSO 10, 4, 2014
OCC2014c	O -	Herald, D., Talbot, J., Chad, C., Broughton, J. & Anderson, P.	2014JDSO...10...29H
OCC2014c		JDSO 10, 29, 2014
OCC2014d	O j	Herald, D., Talbot, J. & Kerr, S.	2014JDSO...10..107H
OCC2014d		JDSO 10, 107, 2014
OCC2014e	O u	Loader, B., Bradshaw, J., Breit, D., Edens, E., Forbes, M., Gault, D., George, T.,	2014JDSO...10..150L
OCC2014e		Haymes, T., Herald, D., Holenstein, B., Ito, T., Iverson, E., et al.
OCC2014e		JDSO 10, 150, 2014
OCC2014f	O -	Soma, M., Hayamizu, T., Ishida, M., Owada, M., Ida, M., Aikawa, R., Hashimoto, A.,	2014JDSO...10..240S
OCC2014f		Horaguchi, T., Kitazaki, K., Uchiyama, S., Uehara, S., Yaeza, A., et al.
OCC2014f		JDSO 10, 240, 2014
OCC2016a	O j	Loader, B., Asai, A., Bardecker, J., Bradshaw, J., Breit, D., Buettner, D.,	2016JDSO...12..143L
OCC2016a		Chad, C., Denyer, P., Edens, E., Forbes, M., Gault, D., George, T., et al.
OCC2016a		JDSO 12, 143, 2016
OCC2016b	O -	Gault, D. & Herald, D.	2016JDSO...12..556G
OCC2016b		JDSO 12, 556, 2016
OCC2017a	O j	Loader, B., Anderson, P., Asai, A., Bradshaw, J., Breit, D., Forbes, M.,	2017JDSO...13..585L
OCC2017a		Gault, D., George, T., Haymes, T., Herald, D., Ishida, M., Kerr, S., et al.
OCC2017a		JDSO 13, 585, 2016
OCC2018a	O j	Timerson, B., George, T., Blank, T., Maley, P., Messner, S. & Moore, J.	2018JDSO...14..395T
OCC2018a		JDSO 14, 395, 2018	.
OCC2019a	O j	Timerson, B., George, T., Bean, J., Blank, T., Bardecker, J., Dunham, D., Dunham,	2019JDSO...15..162T
OCC2019a		J., Gimple, B., Maley, P., Anthony, S., Wiesenborn, C., Hunt, T., Sumner, R. &
OCC2019a		Thomas, W.
OCC2019a		JDSO 15, 162, 2019	.
OCC2019b	O j	Hirose, T., Ida, M., Yamamura, H., Uchiyama, S., Hashimoto, A., Aikawa, R.,	2019JDSO...15..268H
OCC2019b		Terakubo, K., Sato, M. & Shima, K.
OCC2019b		JDSO 15, 268, 2019	.
OCC2019c	O j	Loader, B., Asada, Y., Asai, A., Bardecker, J., Bourgeois, J., Bradshaw, J., Chad,	2019JDSO...15..503L
OCC2019c		C., Ellington, C., Gault, D., Giacchini, B., Haymes, T., Herald, D., Ishida, M.,
OCC2019c		Iverson, E., Kerr, S., Manek, J., McKay, G., Messner, S., Pratt, A., Sandy, R.,
OCC2019c		Watanabe, H., Yamamura, H. & Yoshida, H.
OCC2019c		JDSO 15, 503, 2019	.
OCC2019d	O j	Giacchini, B.L., George, T., Spagnotto, J. & Wilberger, A.J.	2019JDSO...15..554G
OCC2019d		JDSO 15, 554, 2019	.
OCC2020a	O -	Perello, C., Frappa, E., Janik, T., Kattentidt, B., Polak, J., Rottenborn, M. &	2020JDSO...16...87P
OCC2020a		Selva, A.
OCC2020a		JDSO 16, 87, 2020
OCC2020b	O	Herald, D.	2020JDSO...16..113H
OCC2020b		JDSO 16, 105, 2020
OCC2020c	O	Bardecker, J. & Messner, S.	2020JDSO...16..405B
OCC2020c		JDSO 16, 405, 2020
OCC2020d	O	Gault, D., Barry, T., Nosworthy, P., Hanna, W., Messner, S., Oesper, D., Dunford,	2020JDSO...16..440G
OCC2020d		R., Trank, R., Preston, S. & Herald, D.
OCC2020d		JDSO 16, 440, 2020
OCC2020e	O	Boutet, M. & Sanchez, J.	2020JDSO...16..483B
OCC2020e		JDSO 16, 483, 2020
OCC2021a	O	Hayamizu, T., Soma, M., Watanabe, Ha., Asai, A., Watanable, Hi. & Nohara, H.	2021JDSO...17..131H
OCC2021a		JDSO 17, 131, 2021
OCC2021b	O	Frappa, E., Zeleny, P., Baruffetti, P., Bendjeddou, A., Bigi, M., Bouazara, O.,	2021JDSO...17..230F
OCC2021b		Gacem, A., Khenifer, H.M., Mokhtari, L., Nosal, P., Rayane, H., Selimi, T.E.M.,
OCC2021b		Sposetti, S. & Aissa, D.B.
OCC2021b		JDSO 17, 230, 2021
OCC2022a	O	Hayamizu, T., Soma, M., Watanabe, Hi., Asai, A., Watanable, Ha., Akira, A.,	2022JDSO...18...61H
OCC2022a		Ida, M., Uchiyama, S., Nagata, T., Yamamura, H., Owada, M. & Yamashita, M.
OCC2022a		JDSO 18, 61, 2022
OCC2022b	O j	Andersson, S.	2022JDSO...18..207A
OCC2022b		JDSO 18, 207, 2022
OCC2022c	O j	Klos, O.	2022JDSO...18..210K
OCC2022c		JDSO 18, 210, 2022
OCC2023a	O j	Bardecker, J.	2023JDSO...19...59B
OCC2023a		JDSO 19, 59, 2023

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18158-1855	OCC 566		1978	0	-1	0.1	9.60	10.60	B3		181546.30-185440.3

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WDS 18158-1855 OCC 566 (HD 312903) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18158-1855 OCC 566 (HD 312903) : MEASURES

No records found.

WDS 18158-1855 (HD 312903) : VIRTUAL EYEPIECE

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

WDS 18158-1855 (HD 312903) : ALADIN DSS IMAGE @ 18^h 15^m 46.30^s -18° 54' 40.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18158-1855 OCC 566 (HD 312903) : 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		18158-1855	OCC 566		-1	0.1
Show		18153-1900	ARA 743	CQ	298	13.1	9
Show		18153-1900	BU 284	BR	326	5.2	9
Show		18153-1900	BU 284	AB	358	18.1	9
Show		18153-1900	BU 284	AC	86	31.1	9
Show		18153-1900	BU 284	AD	192	57.8	9
Show		18153-1900	BU 284	AE	188	75.3	9
Show		18153-1900	BU 284	AF	267	138.7	9
Show		18153-1900	BU 284	AG	200	12.4	9
Show		18153-1900	BU 284	AH	67	21.0	9
Show		18153-1900	BU 284	AS	103	19.1	9
Show		18164-1858	B 1885		257	2.5	11
Show		18165-1856	ARA 466		140	7.3	11
Show		18150-1857	RST3167		153	4.5	12
Show		18150-1900	ARA 741		355	14.7	13
Show		18168-1858	OCC9179		-1	0.1	16
Show		18147-1847	TOB 272	AB	330	28.8	17
Show		18147-1847	TOB 272	BC	324	18.4	17
Show		18170-1858	MZA 23	AB	227	17.5	18
Show		18170-1858	SNA 85	Aa,Ab	265	0.0	18
Show		18170-1858	SNA 85	AC	88	5.1	18
Show		18170-1858	SNA 85	AD	247	5.8	18
Show		18170-1858	SNA 85	AE	58	7.3	18
Show		18166-1842	ARA 468		131	5.9	18
Show		18156-1835	ARA 465		258	15.2	20
Show		18163-1913	B 2440		291	0.5	20
Show		18150-1912	LEO 15	AB	112	4.0	21
Show		18150-1912	LEO 15	AC	300	8.1	21
Show		18150-1912	OCC9178	Aa,Ab	-1	0.1	21
Show		18173-1851	ARA 470		166	13.8	21
Show		18155-1840	SEE 349		134	10.6	22
Show		18143-1902	ARA 740		53	9.2	23
Show		18166-1835	DBR 312		37	4.4	23
Show		18143-1904	B 2859	AB	48	6.6	24
Show		18143-1904	SIN 108	AC	149	11.3	24
Show		18162-1921	B 2439		113	2.5	27
Show		18165-1830	DBR 310		63	2.1	28
Show		18140-1904	ARA 736		336	11.6	28
Show		18166-1830	DBR 311		101	3.1	28
Show		18138-1847	HJ 594	AB	121	7.6	30
Show		18138-1847	HJ 594	AC	238	13.5	30
Show		18141-1912	CHR 234	Aa,Ab	60	0.2	30
Show		18141-1912	ARA 738	AB	61	15.4	30
Show		18137-1903	SKF 97		269	2.5	31
Show		18179-1848	BU 299	VW	317	6.8	31
Show		18138-1904	ARA 735		93	9.6	31
Show		18179-1848	SHJ 263	AB	10	53.7	31
Show		18179-1848	BU 299	AT	21	21.5	31
Show		18179-1848	BU 299	AU	66	28.5	31
Show		18179-1848	BU 299	AV	324	22.9	31
Show		18179-1848	BU 299	AW	325	23.4	31

WDS 18158-1855 : COMPONENTS

	A
B	pa=0.0° sep=0.00"

18158-1855 A

Componente originario normalizzato	AB	Name	HD 312903	Coord arcsec 2000	181546.30-185440.3	Mag	9.6
Spectral class	B3 (blue-white)	PmRA	-1.00	PmDE	-2.0	Tycho2	6272-01145-1
HD	312903

Tycho2

Tycho2	6272-01145-1	Pflag		RAmdeg	273.94292170	DEmdeg	-18.91120131
PmRA	-0.1	PmDE	-1.2	E RAmdeg	9	E DEmdeg	11
E pmRA	1.5	E pmDE	1.5	EpRAm	1990.77	EpDEm	1990.17
Num	7	Q RAmdeg	1.2	Q DEmdeg	0.5	Q pmRA	1.3
Q pmDE	0.6	BTmag	8.863	E BTmag	0.019	VTmag	8.836
E VTmag	0.019	Prox	999	TYC	T	HIP
CCDM		RAdeg	273.94292222	DEdeg	-18.91119861	EpRA 1990	1.88
EpDE 1990	1.79	E RAdeg	8.5	E DEdeg	11.4	Posflg
Corr	0.1

18158-1855 B

Componente originario normalizzato	AB		Coord arcsec 2000	181546.30-185440.3		Mag	10.6		Calc delta mag	1
Calc coord	yes