HackerPapers

arXiv:1303.5961astro-ph.CO

Paper-and-pencil cosmological calculator

Sergey V. Pilipenko

Abstract

The paper-and-pencil calculator is a cosmological nomogram which allows to find relations between redshift, distance, age of the Universe, physical and angular sizes, luminosity and apparent magnitude for the standard cosmological model with parameters from the Planck mission.

arXiv comments
Cosmological parameters updated according to Planck 2018 results
Journal reference
DOI
Subjects
astro-ph.COCosmology and Nongalactic Astrophysics

On Hacker News

Linked by 2 identifiable commenters in 2 comments across 2 threads, from May 2022 to Jun 2022.

Comments linking this paper, per year.

Discussed in comments2 threads

    • I think you're right, but with a tiny handful of notable exceptions in astrophysics, where gigametres can be a characteristic or upper length scale. LISA is practically always described as a gigametre-scale observatory. One example: "LISA, a gigameter-scale space-based…

      raattgiftView on HNParent context

  1. Angular Diameter Turnaround 1 comment
    • Here's an quick graphical reference to the size of the effect: https://arxiv.org/abs/1303.5961 ("Paper-and-pencil cosmological calculator")

      perihelionsView on HNParent context

Submitted to Hacker News

Connected through shared HN threads, not inferred similarity or a recommendation.