All Questions
Tagged with nebula radio-astronomy
4 questions
5
votes
1
answer
67
views
How to interpret illumination in "pulsar cannonball" image
This beautiful image (from APOD) looks like the trail of the ejected pulsar is illuminating a ball of gas and dust. My eye sees patches of light and shadow, but sometimes images can be deceptive. What ...
2
votes
1
answer
81
views
Is it possible to take the same images in HST palette as the optic telescope but with radio telescope?
Is it possible to detect signal from SII, H$\alpha$, OIII using radio telescope and make the similar images as optic telescope? If no, can we use the different elements to take signal?
What minimal ...
2
votes
0
answers
39
views
Are radio telescopes finding radio-dark Nebulas
Are there "dark nebula" spots in the sky for radio telescopes? By that I mean, are there portions in the sky where these telescopes do not receive any radio waves? If so, do they match ...
6
votes
1
answer
275
views
Assuming no light pollution, was "2C. 1406" ever visible to the naked eye?
Joseph Needham, in his Science and Civilisation in China Vol. III, claimed that there was an ancient record of a nova about three thousand years ago. As a result of private correspondences with a "Dr ...