A 3% Solution: Determination of the Hubble Constant with the Hubble Space Telescope and Wide Field Camera 3 · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/1103.2976/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTA 3% Solution: Determination of the Hubble Constant with the Hubble Space Telescope and Wide Field Camera 3 — mentioned by sanxiynhttps://news.ycombinator.com/item?id=39678257urn:hackerpapers:mention:1103.2976:39678257Tue, 12 Mar 2024 11:23:43 GMT<p>Error analysis of cosmic distance ladder is fiercely technical subject. https://arxiv.org/abs/1103.2976 Table 5 is titled &quot;H0 Error Budget for Cepheid and SN Ia Distance Ladders&quot;. (It is old and the field is moving fast, but this is what I happened to remember.) Among total error of 3.1%, Cepheid reddening is 1.4% and the second largest source of uncertainty. SN Ia statistics is the largest with 1.9%. Rarely discussed in popular treatment is anchor distance, the third largest source with 1.3%. It is uncertainty of bottom lungs of the ladder, eg the distance to Large Magellanic Cloud before…</p><p><a href="https://hackerpaper.kaipfister.de/p/1103.2976/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.CO