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physical object > natural object > celestial body > radio source > W3 |
W3 | ||||
subject | fact |
W3 | is a part of Perseus arm | |
has distance 3 kpc | ||
has definition A dense cloud of gas in the Perseus arm. | ||
is an instance of radio source | ||
radio source | has wavelength radio | |
is a part of celestial sphere | ||
has catalog radio source catalog | ||
celestial body | has spectra | |
physical object | has location or center of gravity | |
has angular momentum | ||
has mass | ||
has velocity | ||
has momentum | ||
has temperature | ||
has volume | ||
has extent | ||
has material |
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