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Galactic Navigation

Longitude & SCO X-1

Lets compare the location of Sco X-1 on the black and white map to the location of Sco X-1 on this diagram. Where is it on the black and white map? It is in the center, above the galactic plane. Does this mean that it is not in the Milky Way? Not necessarily.

The universe on a flat screen


Look at the location of Sco X-1 in the Degrees Longitude diagram. It is nearly at 0o. It is in the direction of the galactic center; similarly, it is near the center of the black and white map.

Longitude Diagram of the Earth


Do you see now why it seems to be so far above the galactic plane? It is very close to the Earth. The latitude of Sco X-1 is about 24o. Where would you draw it on the Degrees Latitude diagram?

Latitude Diagram of the Earth


Next: Longitude & the Crab Nebula

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Revised: April 09, 2008