NGC 1976

Number of stars per data source

	Reference    1 :    2 stars
	Reference    3 :    1 star
	Reference   10 :    1 star
	Reference   13 :    1 star
	Reference   19 :    1 star
	Reference   23 :   49 stars
	Reference   29 :    1 star
	Reference   54 :   60 stars
	Reference   58 :    4 stars
	Reference   62 :    2 stars
	Reference   66 :    9 stars
	Reference   74 :   51 stars
	Reference   77 :  295 stars
	Reference   99 :   44 stars
	Reference  113 :    2 stars
	Reference  123 :    1 star
	Reference  187 :  106 stars
	Reference  262 :    2 stars
	Reference  282 :   51 stars
	Reference  285 :    1 star
	Reference  314 :    1 star
	Reference  317 :   38 stars
	Reference  337 :   44 stars
	Reference  375 :    1 star
	Reference  451 :    2 stars
	Reference  480 :    4 stars
	Reference  486 :   17 stars
	Reference  577 :   38 stars
	Reference  634 :    3 stars
	Reference  636 :    1 star
	Reference  640 :    3 stars
	Reference  646 :    1 star
	Reference 1044 :    1 star
	Reference 1048 :   37 stars
	Reference 1091 :   13 stars
	Reference 1121 :    1 star
	Reference 1191 :    1 star
	Reference 1241 :    1 star
	Reference 1281 :    1 star
	Reference 1282 :    1 star
	Reference 1383 :    4 stars
	Reference 1404 :    1 star
	Reference 1410 :    6 stars
	Reference 1441 :  101 stars
	Reference 1492 :   34 stars
	Reference 1505 :    1 star
	Reference 2008 :  152 stars
	Reference 2022 :    5 stars
	Reference 2023 :    1 star

References

 1
Sharpless S.
(1952) Astrophys. J. 116, 251
A study of the Orion aggregate of early-type stars
1952ApJ...116..251S
 3
Johnson H.L., Morgan W.W.
(1953) Astrophys. J. 117, 313
Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas
1953ApJ...117..313J
 10
Johnson H.L., Harris III D.L.
(1954) Astrophys. J. 120, 196
Three-color observations of 108 stars intended for use as photometric standards
1954ApJ...120..196J
 13
Naur P.
(1955) Astrophys. J. 122, 182
Magnitudes and colors of bright F stars
1955ApJ...122..182N
 19
Hiltner W.A., Johnson H.L.
(1956) Astrophys. J. 124, 367
The law of interstellar reddening and absorption
1956ApJ...124..367H
 23
Johnson H.L.
(1957) Astrophys. J. 126, 134
The color-magnitude diagram for I Orionis
1957ApJ...126..134J
 29
Mendoza E.E.
(1958) Astrophys. J. 128, 207
Spectroscopic and photometric study of the Be stars
1958ApJ...128..207M
 54
Sharpless S.
(1962) Astrophys. J. 136, 767
Evolutionary effects in the Orion association
1962ApJ...136..767S
 58
Tolbert C.R.
(1964) Astrophys. J. 139,1105
A UBV study of 94 wide visual binaries
1964ApJ...139.1105T
 62
Johnson H.L.
(1965) Astrophys. J. 141, 923
Interstellar extinction in the Galaxy
1965ApJ...141..923J
 66
Mendoza E.E.
(1966) Astrophys. J. 143,1010
Infrared photometry of T Tauri stars and related objects
1966ApJ...143.1010M
 74
Lee T.A.
(1968) Astrophys. J. 152, 913
Interstellar extinction in the Orion Association
1968ApJ...152..913L
 77
Walker M.F.
(1969) Astrophys. J. 155, 447
Studies of extremely young clusters. V. Stars in the vicinity of the Orion nebula
1969ApJ...155..447W
 99
Penston M.V.
(1973) Astrophys. J. 183, 505
Multicolor observations of stars in the vicinity of the Orion nebula
1973ApJ...183..505P
 113
Breger M.
(1976) Astrophys. J. 204, 789
A polarization survey of stars near the Orion nebula
1976ApJ...204..789B
 123
Walker M.F.
(1978) Astrophys. J. 224, 546
Spectroscopic and photometric observations of YY Orionis
1978ApJ...224..546W
 187
Warren P.R., Hesser J.E.
(1977) Astrophys. J. Suppl. 34, 115
A photometric study of the Orion OB1 association I. Observational data
1977ApJS...34..115W
 262
Crawford D.L., Barnes J.V., Golson J.C.
(1971) Astron. J. 76,1058
Four-color, Hbeta, and UBV photometry for bright B-type stars in the northern hemisphere
1971AJ.....76.1058C
 282
McNamara B.J.
(1976) Astron. J. 81, 845
Pre-main-sequence masses and the age spread in the Orion cluster
1976AJ.....81..845M
 285
Lutz T.E., Lutz H.
(1977) Astron. J. 82, 431
Spectral classification and UBV photometry of bright visual double stars
1977AJ.....82..431L
 314
Landolt A.U.
(1983) Astron. J. 88, 853
UBVRI photometry of stars useful for checking equipment orientation stability
1983AJ.....88..853L
 317
Rydgren A.E., Vrba F.A.
(1984) Astron. J. 89, 399
The incidence of infrared excesses among G-type stars in the direction of the Orion Ic association
1984AJ.....89..399R
 337
van Altena W.F., Lee J.T., Lee J.-F., Lu P.K., Upgren A.R.
(1988) Astron. J. 95, 1744
The velocity dispersion of the Orion nebula cluster. I.
1988AJ.....95.1744V
 375
Moreno H.
(1971) Astron. Astrophys. 12, 442
On the transfer of photometric systems
1971A&A....12..442M
 451
Haupt H.F., Schroll A.
(1974) Astron. Astrophys. Suppl. 15, 311
Photoelektrische Photometrie von Shell-Sternen
1974A&AS...15..311H
 480
Bastian U., Mundt R.
(1979) Astron. Astrophys. Suppl. 36, 57
UBV photometry of T Tauri stars and related objects
1979A&AS...36...57B
 486
Mundt R., Bastian U.
(1980) Astron. Astrophys. Suppl. 39, 245
UBV photometry of young emission-line objects
1980A&AS...39..245M
 577
Penston M.V., Hunter J.K., O'Neil A.
(1975) Monthly Notices Roy. Astron. Soc. 171, 219
Further observations of the Orion nebula cluster
1975MNRAS.171..219P
 634
Cousins A.W.J.
(1962) Mon. Not. Astr. Soc. Sth Africa 21, 20
Photometric data for stars in the equatorial zone (first list)
1962MNSSA..21...20C
 636
Cousins A.W.J.
(1962) Mon. Not. Astr. Soc. Sth Africa 21, 61
Photometric data for stars in the equatorial zone (second list)
1962MNSSA..21...61C
 640
Cousins A.W.J.
(1963) Mon. Not. Astr. Soc. Sth Africa 22, 58
Photometric data for stars in the equatorial zone (fourth list)
1963MNSSA..22...58C
 646
Lake R.
(1965) Mon. Not. Astr. Soc. Sth Africa 24, 41
Photoelectric magnitudes and colours for bright southern stars
1965MNSSA..24...41L
 1044
Mendoza E.E.
(1967) Bol. Obs. Tonantzintla Tacubaya 4, 149
Multicolor photometry of stellar aggregates
1967BOTT....4..149M
 1048
Andrews A.D.
(1970) Bol. Obs. Tonantzintla Tacubaya 5, 195
Multi-colour photographic photometry of Orion flare stars
1970BOTT....5..195A
 1091
Johnson H.L., Mitchell R.I., Iriarte B., Wizniewski W.
(1966) Comm. Lunar Plan. Lab. 4, 99 (No. 63)
UBVRIJKL photometry of the bright
 1121
Walker R.L.
(1976) Inf. Bull. Var. Stars 1148
On the secondary minimum of Theta1 Ori A
1976IBVS.1148....0W
 1191
Imagawa F.
(1967) Mem. Coll. Sci. Univ. Kyoto A31 No. 2
Observational results of three color photometry For F-type stars. - II.
 1241
Hogg A.R.
(1958) Mount Stromlo Obs. mim. No. 2
Photometric observations of 244 bright stars
1958MtSOM...2....1H
 1281
Gutierrez-Moreno A., Moreno H., Stock J., Torres C.
(1966) Publ. Univ. Chile 1, 1
A system of photometric standards
1966PDAUC...1....1G
 1282
Mendoza E.E.
(1968) Publ. Univ. Chile 7, 106
Some characteristics of infrared colors
1968PDAUC...7..106M
 1383
Cousins A.W.J., Stoy R.H.
(1962) Royal Obs. Bull. No. 64
Photoelectric magnitudes and colours of southern stars
1962RGOB...64..163C
 1404
Cousins A.W.J.
(1984) South African Astron. Obs. Circ. 8, 59
Standardisation of broad band photometry of equatorial standards
1984SAAOC...8...59C
 1410
Menzies J.W., Marang F., Westerhuys J.E.
(1990) South African Astron. Obs. Circ. 14, 33
Broad-band photometry of selected southern ultraviolet-bright stars
1990SAAOC..14...33M
 1441
Shulov O.S., Kopatskaya G.N., Khudyakova T.N.
(1983) Trudy Astron. Obs. Leningrad 38, 76
UBVRI photometry of stars in the Orion Nebula cluster
1983TrLen..38...76S
 1492
Morgan W.W., Loden K.
(1964) Vistas Astron. 8, 83
Some characteristics of the Orion association
1964VA......8...83M
 1505
Appenzeller I.
(1966) Z. Astrophys. 64, 269
Polarimetrische, Photometrische und Spektroskopische Beobachtungen von Sternen im Cygnus und Orion
1966ZA.....64..269A
 2008
Shevchenko V.S., Yakubov S.D.
(1992) Soviet Astron. 36, 359
Stellar population of the Orion cluster. Vicinity of NGC 1999
1992SvA....36..359S
 2022
Kolotilov E.A.
(2001) Astron. Astrophys. Trans. 19, 875
UBV photoelectric photometry of young stars
2001A&AT...19..875K
 2023
Frasca A., Alcala J.M., Covino E., Catalano S., Marilli E., Paladino R.
(2003) Astron. Astrophys. 405, 149
Further identification of ROSAT all-sky survey sources in Orion
2003A&A...405..149F