The Online Star Register Blog

Thank you for visiting the Online Star Register Blog. Here we share the latest news with you about the OSR gifts, our apps and about what we love most: the universe and the stars!

SpaceX’s Raptor engine or the Russian RD-180?

- 5 April 2022

The ‘Raptors’ are a family of Mask’s methane engines, planned for the future ‘Starship’ rocket, which should take part in the exploration of the Moon and the colonization of Mars. The RD-180 is a Russian two-chamber kerosene engine. Until recently, the Russians sold over 120 of these powerful engines for $ 23 million each!

The analemma

- 4 April 2022

Although astronomy is a high-tech science today, it deals with many ancient Greek phrases. One of them is the analemma – an elongated octave curve that shows the position of the Sun in the sky during a year, observed from the same place at the same time.