NGC 740

{{Short description|Galaxy in the constellation Triangulum}}

{{Infobox galaxy

| name = NGC 740

| image = NGC740 - SDSS DR14.jpg

| image_size =

| upright =

| caption = NGC 740 imaged by the Sloan Digital Sky Survey

| alt =

| epoch = J2000

| pronounce =

| constellation name = Triangulum

| ra = {{RA|01|56|54.867}}

| dec = {{DEC|+33|00|54.63}}

| z =

| h_radial_v = 4,518 km/s

| gal_v =

| dist_pc =

| dist_ly = {{cvt|60.98|Mpc|Mly|order=flip|lk=on}}

| group_cluster =

| type = SBb?

| mass = {{Val|2.48|e=12}}

| mass_light_ratio =

| size = {{cvt|0.35|Mpc|kly|disp=out}}

| stars =

| appmag_v =

| appmag_b = 14.9

| absmag_v =

| size_v = {{nowrap|1.017 × 0.264′}}

| half_light_radius_pc =

| half_light_radius_arcminsec =

| h1_scale_length_pc =

| h1_scale_length_arcminsec =

| xray_radius_pc =

| xray_radius_arcminsec =

| notes =

| references =

| names = {{odlist|UGC=1421|MCG=+05-05-031|PGC=7316}}

}}

NGC 740 is a barred spiral galaxy located in the Triangulum constellation. It is estimated to be 210 million light-years from the Milky Way and has a diameter of about 85,000 light-years. It was discovered by the Irish engineer Bindon Stoney, an assistant to William Parsons.

References

{{reflist|refs=

{{cite simbad | title=NGC 740 | access-date=2020-01-13 }}

{{cite journal |doi=10.1086/498708 |last1=Skrutskie |first1=Michael F. |last2=Cutri |first2=Roc M. |last3=Stiening |first3=Rae |last4=Weinberg |first4=Martin D. |last5=Schneider |first5=Stephen E. |last6=Carpenter |first6=John M. |last7=Beichman |first7=Charles A. |last8=Capps |first8=Richard W. |last9=Chester |first9=Thomas |last10=Elias |first10=Jonathan H. |last11=Huchra |first11=John P. |last12=Liebert |first12=James W. |last13=Lonsdale |first13=Carol J. |last14=Monet |first14=David G. |last15=Price |first15=Stephan |last16=Seitzer |first16=Patrick |last17=Jarrett |first17=Thomas H. |last18=Kirkpatrick |first18=J. Davy |last19=Gizis |first19=John E. |last20=Howard |first20=Elizabeth V. |last21=Evans |first21=Tracey E. |last22=Fowler |first22=John W. |last23=Fullmer |first23=Linda |last24=Hurt |first24=Robert L. |last25=Light |first25=Robert M. |last26=Kopan |first26=Eugene L. |last27=Marsh |first27=Kenneth A. |last28=McCallon |first28=Howard L. |last29=Tam |first29=Robert |last30=Van Dyk |first30=Schuyler D. |last31=Wheelock |first31=Sherry L. |title=The Two Micron All Sky Survey (2MASS) |journal=The Astronomical Journal |date=1 February 2006 |volume=131 |issue=2 |pages=1163–1183 |bibcode=2006AJ....131.1163S |s2cid=18913331 |issn=0004-6256 |doi-access=free }}

{{Cite journal

| last1=Crook | first1=Aidan C. | last2=Huchra | first2=John P.

| last3=Martimbeau | first3=Nathalie | last4=Masters | first4=Karen L.

| last5=Jarrett | first5=Tom | last6=Macri | first6=Lucas M.

| title=Groups of Galaxies in the Two Micron All Sky Redshift Survey

| display-authors=1 | journal=The Astrophysical Journal

| volume=655 | issue=2 | pages=790–813 | date=February 2007

| doi=10.1086/510201 | arxiv=astro-ph/0610732

| bibcode=2007ApJ...655..790C | s2cid=11672751 }}

{{Cite journal

| last1=de Vaucouleurs | first1=G. | last2=de Vaucouleurs | first2=A.

| last3=Corwin | first3=H. G. Jr. | last4=Buta | first4=R. J.

| last5=Paturel | first5=G. | last6=Fouque | first6=P.

| title=Third reference catalogue of bright galaxies

| version=3.9 | display-authors=1 | date=1991

| publisher=Springer-Verlag | location=New York }}

{{Cite web|url=https://telescopius.com/deep-sky/object/1635/ngc-740/galaxy?fromdsobrowser|title=Galaxy NGC 740 - Barred Spiral Galaxy in Triangulum Constellation|last=Rojas|first=Sebastián García|website=Telescopius|language=en|access-date=2019-12-09}}

{{Cite web|url=http://www.docdb.net/show_object.php?id=ngc_740|title=DOCdb - NGC 740|website=www.docdb.net|access-date=2019-12-09}}

{{Cite web|url=http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=ngc+740&img_stamp=YES|title=Your NED Search Results|website=ned.ipac.caltech.edu|access-date=2019-12-09}}

}}