5-633: NGC 2736 (also known as the Pencil Nebula ) is a small part of the Vela Supernova Remnant , located near the Vela Pulsar in the constellation Vela . The nebula's linear appearance triggered its popular name. It resides about 815 light-years (250 parsecs) away from the Solar System . It is thought to be formed from part of the shock wave of the larger Vela Supernova Remnant. The Pencil Nebula
10-572: A nebula with dimensions 30'x7', position angle of 20 and notes "Luminous filament". Harold Corwin adds that on the ESO IIIa-F film this nebula is the brightest patch of a huge supernova remnant (Gum Nebula) whose delicate whisps cover the field. A relatively bright star is immersed in N2736 (mentioned by Herschel). This nebula-related article is a stub . You can help Misplaced Pages by expanding it . Vela Supernova Remnant The Vela supernova remnant
15-594: Is a supernova remnant in the southern constellation Vela . Its source Type II supernova exploded approximately 11,000 years ago (and was about 900 light-years away). The association of the Vela supernova remnant with the Vela pulsar , made by astronomers at the University of Sydney in 1968, was direct observational evidence that supernovae form neutron stars . The Vela supernova remnant includes NGC 2736 . Viewed from Earth,
20-512: Is moving at roughly 644,000 kilometers per hour (400,000 miles per hour). On 1 March 1835, John Herschel discovered this object at the Cape of Good Hope and described it as "eeF, L, vvmE; an extraordinary long narrow ray of excessively feeble light; position 19 ±. At least 20' long, extending much beyond the limits of the field...". This agrees perfectly with the ESO- Uppsala listing N2736 = E260-N14,
25-623: The Vela supernova remnant overlaps the Puppis A supernova remnant , which is four times more distant. Both the Puppis and Vela remnants are among the largest and brightest features in the X-ray sky . The Vela supernova remnant is one of the closest known to us. The Geminga pulsar is closer (and also resulted from a supernova), and in 1998 another near-Earth supernova remnant was discovered, RX J0852.0-4622 , which from our point of view appears to be contained in
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