Radio observation in hydrogen line (1420MHz)

Obtaining the value to use for VLSR correction during analysis of amateur radio astronomy data from NRAO (Greenbank Observatory) website

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https://www.gb.nrao.edu/cgi-bin/radvelcalc.py?UTDate=2026%2F04%2F11&UTTime=12%3A00%3A00&RA=20%3A23%3A00&DEC=40%3A00%3A00

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Radio observation in hydrogen line (1420MHz)

Alex Pettit’s Instructions for making an umbrella antenna and cakepan loop hydrogen line feed:

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Radio observation in hydrogen line (1420MHz)

Key documents for making your own Jason Burnfield 1.5m mini hydrogen line radio telescope and using this to successfully take a spectrum on M31 Andromeda Galaxy (and hopefully even the M33 Triangulum Galaxy).

Admin
Radio observation in hydrogen line (1420MHz)

Alex Pettit’s Project: H-Line 3D:

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Radio observation in hydrogen line (1420MHz)

Alex Pettit’s Instructions for making an umbrella antenna and cakepan loop hydrogen line feed:

Radio observation in hydrogen line (1420MHz)

Key documents for making your own Jason Burnfield 1.5m mini hydrogen line radio telescope and using this to successfully take a spectrum on M31 Andromeda Galaxy (and hopefully even the M33 Triangulum Galaxy).

Radio observation in hydrogen line (1420MHz)

Alex Pettit’s Project: H-Line 3D:

Radio observation in hydrogen line (1420MHz)

Ted Cline’s Easy Radio Astronomy (ezRA) Software Suite: