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Tag Archives: Stars

Star colours and what space is like

Urban Astronomer avatarPosted on 5 Dec, 2019 by Allen Versfeld5 Dec, 2019
Microphone. Image By Jpcuevas (Own work) [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons

The Urban Astronomer Podcast’s season 2 finale examines the colours of stars, and ponders what it’s actually like out in space

https://media.blubrry.com/urbanastronomer/s3.eu-west-1.amazonaws.com/constellationonline.net/media/Podcast/UrbanAstronomer/UA_Episode_54_S02E12.mp3

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Posted in Questions and Answers, The Urban Astronomer Podcast | Tagged Physics, podcast, Q&A, Stars | Leave a reply

Podcast #38: Dr Pieter Kotzé at ScopeX 2018

Urban Astronomer avatarPosted on 28 Nov, 2018 by Allen Versfeld28 Nov, 2018

Welcome to episode 38 of the Urban Astronomer Podcast. This episode features the last part of our physics feature on the lifecycle of a star from dust cloud to super nova, and the 3rd of the ScopeX 2018 public lectures. Physics Over the past few episodes we’ve been trying to understand how a random cloud of dust and gas can turn into a supernova. In this segment, we finally get to witness our supernova, but that’s just brought up more … Continue reading →

https://media.blubrry.com/urbanastronomer/s3-eu-west-1.amazonaws.com/constellationonline.net/media/Podcast/UrbanAstronomer/UA_Episode_38.mp3

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Posted in The Urban Astronomer Podcast | Tagged Outreach, Physics, podcast, ScopeX, Stars, Supernova | Leave a reply

Podcast #30: Stellar Evolution and Nuclear Fusion

Urban Astronomer avatarPosted on 21 Jun, 2018 by Allen Versfeld21 Jun, 2018
Microphone. Image By Jpcuevas (Own work) [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons

Welcome to episode 30 of the Urban Astronomer Podcast. This week’s episode features the 2nd part of our look at how stellar evolution can lead to a supernova explosion, inspired by listener requests to present more serious science and physics explainers. Last time we looked at the formation of a stellar nursery, so today we look inside that nursery at the birth of a new star. For fans of the interviews with people who have some connection to astronomy in South … Continue reading →

https://media.blubrry.com/urbanastronomer/s3-eu-west-1.amazonaws.com/constellationonline.net/media/Podcast/UrbanAstronomer/UA_Episode_30.mp3

Podcast: Play in new window | Download (Duration: 28:25 — 26.0MB) | Embed

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Posted in The Urban Astronomer Podcast | Tagged Physics, podcast, Stars | 1 Reply

Why can’t you see any stars on the moon?

Urban Astronomer avatarPosted on 10 Jul, 2011 by Allen Versfeld20 May, 2016

Ah, but you can if you wait till night time!  You can’ t see any stars in photographs taken from the Apollo missions because they were all taken in broad daylight.  As any photographer will tell you, a camera can only cope with a narrow range of brightnesses, so that the aperture setting and shutter speed are very important if a photograph is not to be over- or under-exposed for given lighting conditions.  In this age of automatic point-and-click digital … Continue reading →

Posted in Astronomy, Questions and Answers, Short Questions | Tagged Moon, Q&A, Stars | Leave a reply
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