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(617) 495-7462
Christine Pulliam
(617) 495-7463
pubaffairs@cfa
Release No.: 2008-12For Release: Tuesday, June 03, 2008
Milky Way Mapping Project Finds Surprisingly Slow Stars
Milky Way Mapping Project Finds Surprisingly Slow Stars
This map of the near side of the Milky Way, a combination of an artist's conception and real data points, shows several spiral arms. The sun (red
circle) is located on a spur between two of the arms. Blue circles mark star-forming regions whose distances have been accurately measured using parallax.
Credit: Bill Saxton (NRAO) and Mark Reid (CfA)
High Resolution Image (jpg)
Low Resolution Image (jpg)
Credit: Bill Saxton (NRAO) and Mark Reid (CfA)
High Resolution Image (jpg)
Low Resolution Image (jpg)
Very Long Baseline Interferometry provides extremely high precision that can extend use of the parallax technique to many more celestial objects. Parallax is a direct means of measuring cosmic distances by detecting the slight shift in an object's apparent position in the sky caused by Earth's orbital motion.
Credit: Bill Saxton, NRAO/AUI/NSF
Low Resolution Image (jpg)
Credit: Bill Saxton, NRAO/AUI/NSF
Low Resolution Image (jpg)
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