I had Celestron SkyMaster 15x70 for a couple of years, first impressions were immense, really enjoyed them for what they are.
If you're completely psyched about Astronomy, you should probably get them and the tripod too of course. Mind that you will have to buy a metal bracket as well, as the plastic one which comes with these binos is too wobbly.
On the other hand, if you think you'd need more versatile pair of binoculars, try these 10x42 Nikons, better quality, more versatile, bright and sharp. There're a bit bigger ones at 10x50 , but 10x42 is enough for Astro use as well. They're more lightweight , so you can hold them steady without a tripod, unlike 15x70 Celestrons. Very travel friendly indeed.& since i bought them i never looked back , and stopped using Celestron whatsoever.
Have fun!