What are six different methods to measure distances in Astronomy in regards of their respective range in terms of astronomical objects?
So far I can name 4: Parallax method, radar ranging, main-sequence fitting, cepheid variables.
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Using type Ia supernova light curves.
The RR Lyrae period-luminosity relation.
Moving cluster statistical parallax.
Surface brightness fluctuations.
Using merging gravitational wave sources as standard sirens.
These and more can be pursued following this link. https://en.m.wikipedia.org/wiki/Cosmic_distance_ladder
At least 44 extragalactic distance measurement methods are known, apart from the parallax method which is only useful for objects in our own galaxy. Further reading about these can be done here: 1, 2, 3
Disclosure: The first referenced paper is authored by me.