NGC 752

Distance
Distance	1,470 ly (450 pc)
Apparent magnitude (V)	5.7
Apparent dimensions (V)	75′
Physical characteristics
Other designations	Caldwell 28, Cr 23
Associations
Constellation	Andromeda
	See also: Open cluster, List of open clusters

NGC 752 (also known as Caldwell 28) is an

Giovanni Batista Hodierna before 1654.^[4]

The large cluster lies 1,400 light-years away from the Earth and is easily seen through binoculars, although it may approach naked eye visibility under good observing conditions. A telescope reveals about 60 stars no brighter than 9th magnitude within NGC 752.^[3]^[5]

Components

The most up-to-date research lists 302 stars as members of NGC 752.

eclipsing binary DS Andromedae is a member of this cluster.^[8]

Images

Notable stars

Name	Right ascension	Declination	Apparent magnitude (V)	Spectral type	Database references	Relevance
TYC 2816-327-1	01^h 56^m 08.9572^s	+37° 39' 52.7528"	10.41	F5.3V^[6]	Simbad	Gamma Doradus variable
DS Andromedae	01^h 57^m 46.0561^s	+38° 04' 28.43112"	10.44 - 10.93 (variable)	F3IV-V + G0V (double)	Simbad	Beta Lyrae variable
BD+37 416	01^h 56^m 10.3002^s	+37° 45' 00.0301"	10.00	F2III	Simbad	Spectroscopic binary
BD+37 416B	01^h 56^m 11.1020^s	+37° 45' 11.3889"	11.19	F0	Simbad	Candidate companion of BD+37 416
TYC 2816-1390-1	01^h 56^m 12.8772^s	+38° 01' 43.1869"	10.88	F3V	Simbad	Spectroscopic binary
TYC 2319-568-1	01^h 56^m 57.5899^s	+37° 23' 20.6538"	10.6	F2V	Simbad	Spectroscopic binary
2MASS J01571216+3756048	01^h 57^m 12.1584^s	+37° 56' 04.7909"	11.9	G5.0V^[6]	Simbad	Spectroscopic binary
BD+36 364	01^h 57^m 25.9968^s	+37° 43' 19.6966"	10.4	F2III	Simbad	Spectroscopic binary
QX Andromedae	01^h 57^m 57.7818^s	+37° 48' 22.4500"	11.28 - 11.50 (variable)	F5	Simbad	W Ursae Majoris variable
2MASS J01575883+3741269	01^h 57^m 58.8386^s	+37° 41' 26.9575"	12.31	F8	Simbad	Spectroscopic binary
TYC 2816-691-1	01^h 58^m 16.8604^s	+37° 38' 15.9955"	11.21	F5V	Simbad	Spectroscopic binary
V447 Andromedae	01^h 58^m 53.9322^s	+37° 34' 42.5263"	13.39	K3.0^[6]	Simbad	RS Canum Venaticorum variable
BD+36 348	01^h 55^m 27.6831^s	+37° 34' 04.6482"	10.14	F2V	Simbad	Spectroscopic binary
BD+37 410	01^h 55^m 29.2926^s	+37° 50' 26.3171"	9.94	F4III	Simbad	Eclipsing binary^[8]
BD+37 418	01^h 56^m 18.8954^s	+37° 58' 00.4602"	8.97	G9III	Simbad	Spectroscopic binary
HD 11812	01^h 56^m 49.7623^s	+38° 01' 21.6883"	9.13	F3V	Simbad	In the HD catalogue
HD 11811	01^h 56^m 50.4330^s	+38° 01' 58.1400"	8.91	G2V	Simbad	Spectroscopic binary
BD+37 431	01^h 57^m 36.2116^s	+37° 45' 10.1549"	9.85	F2III	Simbad	Spectroscopic binary
BD+36 367	01^h 57^m 37.3494^s	+37° 29' 27.6181"	9.75	A0III	Simbad	Blue straggler^[7]
BD+36 368	01^h 57^m 37.5965^s	+37° 39' 37.9032"	8.85	K1III	Simbad	Spectroscopic binary
BD+37 439	01^h 57^m 59.3462^s	+37° 54' 53.9679"	9.85	F2III	Simbad	Spectroscopic binary
BD+37 444	01^h 58^m 36.8870^s	+37° 45' 10.7241"	9.62	F2V	Simbad	Spectroscopic binary
TYC 2816-771-1	01^h 58^m 40.0620^s	+37° 38' 05.2030"	12.43	F2V	Simbad	Spectroscopic binary
2MASS J01591990+3723230	01^h 59^m 19.8967^s	+37° 23' 23.0364"	12.893	–	Simbad	Spectroscopic binary

References

^ ^a ^b "NGC 752". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 10 February 2018.
^
doi:10.5281/zenodo.7481659
.

^
ISBN 978-0-00-717223-8
.

^ Seligman, Courtney. "New General Catalogue objects: NGC 750 - 759". cseligman.com. Retrieved 10 February 2018.
^ Frommert, Kronberg, SEDS: NGC 752
^
S2CID 119438236
.

^
Bibcode:1996A&A...305..806B
.

^
S2CID 253080539
.

External links

Wikimedia Commons has media related to NGC 752.

SEDS – NGC 752
perseus.gr – NGC 752 in a hires LRGB CCD image
NGC 752 on
WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

v t e Caldwell catalogue
List	C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C97 C98 C99 C100 C101 C102 C103 C104 C105 C106 C107 C108 C109
See also	Messier Catalogue Catalogue of Nebulae and Clusters of Stars New General Catalogue Index Catalogue Revised New General Catalogue Herschel 400 Catalogue
Category Commons Portal

Constellation of Andromeda

Stars

Bayer	α (Alpheratz) β (Mirach) γ (Almach) δ ε ζ η θ ι κ λ μ ν ξ (Adhil) ο π ρ σ τ υ (Titawin) φ χ ψ ω A b c υ Per (Nembus)
Flamsteed	2 3 4 5 6 7 8 9 10 11 12 13 14 (Veritate) 15 18 22 23 26 28 32 36 39 41 44 45 47 55 56 58 59 63 64 65 66 6 Per
Variable	R T U W Z RT RV RX SU SW TU TW WZ XZ AB AC AD AE AF AR BM BX CC CG CN DS DX EG ET EU FF GP GQ GX GR GY HH HN IW KK KX KZ LL LN LP LQ OP OS OU PX PY QO QR QV QX V385 V428 V439 V455 V529 V807
HR	1 40 56 78 104 122 134 178 275 282 283 289 379 410 483 687 746 748 8884 8925 8950 8962 8973 9011 9074 9075 9105
HD	16175 (Buna) 222155
Other	3XMM J004232.1+411314 ADS 48 HAT-P-6 (Sterrennacht) HAT-P-16 HAT-P-19 HAT-P-28 M31-RV KELT-1 NGC 44 NGC 82 NGC 84 NGC 91 NGC 162 NGC 464 Qatar-3 Qatar-4 PA-99-N2 WASP-1 WISE 0146+4234 WISE J0005+3737 WISE J004945.61+215120.0

Exoplanets	14 Andromedae b κ Andromedae b υ Andromedae b c d Gliese 15 Ab c HD 13931 b HD 16175 b HAT-P-6b HAT-P-32b WASP-1b WASP-33b Qatar-4b Qatar-5b

Star
clusters

NGC	206 272 752 956 7686
Other	Mayall II RBC EXT8

Nebulae

NGC	7662

Galaxies

Messier	32 110
NGC	5 11 13 19 20 21 27 39 43 48 49 51 67 68 69 70 71 72 74 76 79 80 81 83 85 86 90 93 94 96 97 108 109 112 140 149 160 169 181 183 184 214 218 226 228 229 233 243 252 258 260 262 280 304 317 389 393 404 425 431 477 512 513 523 528 529 531 536 542 561 605 620 668 679 687 700 703 704 705 708 709 710 712 714 717 721 732 753 759 801 812 834 891 906 910 911 912 913 920 937 980 995 996 999 1000 7640 7836
Numbered	I II III IV V VIII IX X XI XVIII XIX XXI
Other	3C 66A 3C 66B Andromeda Galaxy Arp 273 Donatiello I

Galaxy clusters	Abell 262 NGC 68 group

Astronomical events	GRB 101225A SN 1885A (S)