NGC 1555

{{Short description|Variable nebula in the constellation Taurus}}

{{Infobox nebula

| name = NGC 1555

| image = Ngc1555.jpg

| caption = A near-infrared image of NGC 1555

| credit = 2MASS/NASA

| type = variable

| subtype =

| epoch = J2000.0

| ra = {{RA|4|21|57.1}}{{cite simbad

| title=NGC 1555

| access-date=2007-05-01}}

| dec = {{DEC|+19|32|7}}

| dist_ly =

| appmag_v =

| size_v =

| constellation = Taurus

| radius_ly =

| absmag_v =

| notes =

| names = Hind's Nebula, Sharpless 238, PGC 1595946

}}

NGC 1555, sometimes known as Hind's Variable Nebula,{{cite book|last1=Stoyan|first1=Ronald|last2=Schurig|first2=Stephan|title=interstellarum Deep Sky Atlas|publisher=Cambridge University Press; Oculum-Verlag GmbH|publication-place=Erlangen|date=2014|isbn=978-1-107-50338-0|oclc=920437579|url=http://www.deep-sky-atlas.com/}} Sh2-238 or HH 155, is a variable nebula 4 light years across,{{Cite web |date=2013-11-28 |title=Hind's Variable Nebula, a variable nebula in Taurus |url=http://annesastronomynews.com/photo-gallery-ii/nebulae-clouds/hinds-variable-nebula-by-adam-block/ |access-date=2023-10-02 |website=Anne's Astronomy News |language=nl-NL}} illuminated by the star T Tauri, located in the constellation Taurus. It is 400 light years away from Earth, and has a magnitude (B){{Cite web |title=NGC 1555 (Hind's Nebula) - Reflection Nebula in Taurus {{!}} TheSkyLive.com |url=https://theskylive.com/sky/deepsky/ngc1555-hinds-nebula-object |access-date=2023-10-02 |website=theskylive.com}} of 9.98. It is also in the second Sharpless catalog as 238. It is a Herbig–Haro object.{{cite web |url=http://galaxymap.org/cgi-bin/details.py?id=21556&t=hii&s=4_p31.5xp30.5&name=S238 |title=Sh 2-238 |website=galaxymap.org |url-status=dead |archive-url=https://web.archive.org/web/20080203045415/http://galaxymap.org/cgi-bin/details.py?id=21556&t=hii&s=4_p31.5xp30.5&name=S238 |archive-date=2008-02-03}} The nebula was discovered on October 11, 1852, by John Russell Hind.

Image:n1555s.jpg

File:NGC1555 VariableNebula.gif

{{clear left}}