What is the value of our reflex speed relative to Sgr A star given the information below (you may not need all information):

• our distance from the Galactic Center is R₀ = 8.122 kpc,
• the proper motion of Sgr A* is Ω = 6.38 milliarcseconds/year
• the solar motion is 12 km/s ahead of the Local Standard of Rest, and
• the measured radial and tangential velocity dispersions of local stars are related by σ_X² = 2.2 σ_Y².

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Assumption Galactic angular velocity is constant up to some Galactic radius R and for l... View the full answer