NGC 644
NGC 644 is a barred spiral galaxy in the constellation Phoenix in the southern sky. It is estimated to be 270 million light-years from the Milky Way and has a diameter of approximately 130,000 light-years. Together with NGC 641, it probably forms a gravitationally bound pair of galaxies. The object was discovered on September 5, 1834 by John Herschel.
Q2490
barred spiral galaxy
Concept
Q8928
constellation
Concept
Q10441
Phoenix
CEL
Q531
light-year
Concept
Q321
Milky Way
Concept
Q37221
diameter
Concept
Q1547424
gravitationally bound
Concept
Q14278
John Herschel
PER
Q1037891
NGC 644
CEL
1834-09-05T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
September 5, 1834
DATE
+130.000^^http://www.w3.org/2001/XMLSchema#decimal
130,000
NUMBER
constellation
discoverer or inventor
time of discovery or invention
instance of