tchncs
  • Communities
  • Create Post
  • Create Community
  • heart
    Support Lemmy
  • search
    Search
  • Login
  • Sign Up
xkcd bot@lemmy.worldB to xkcd@lemmy.worldEnglish · 3 days ago

xkcd #3219: Planets and Bright Stars

imgs.xkcd.com

message-square
6
link
fedilink
268

xkcd #3219: Planets and Bright Stars

imgs.xkcd.com

xkcd bot@lemmy.worldB to xkcd@lemmy.worldEnglish · 3 days ago
message-square
6
link
fedilink

xkcd #3219: Planets and Bright Stars

Title text:

An old astronomer trick for distinguishing the Sun from other stars is to take multiple photos a few minutes apart and overlay them, making the Sun stand out due to its high proper motion.

Transcript:

Transcript will show once it’s been added to explainxkcd.com

Source: https://xkcd.com/3219/

explainxkcd for #3219

alert-triangle
You must log in or # to comment.
  • Feddinat0r@feddit.org
    link
    fedilink
    English
    arrow-up
    32
    ·
    3 days ago

    Thanks, will print it out for reference

    • WhyIHateTheInternet@lemmy.world
      link
      fedilink
      English
      arrow-up
      17
      ·
      3 days ago

      Be sure to print in color otherwise they’ll all look the same

      • 18107@aussie.zone
        link
        fedilink
        English
        arrow-up
        28
        ·
        3 days ago

        Do not 3d print this one. It may exceed the z-axis limit for your printer.

        • Eager Eagle@lemmy.world
          link
          fedilink
          English
          arrow-up
          2
          ·
          3 days ago

          or rescale it and risk creating a singularity

  • lugal@lemmy.dbzer0.com
    link
    fedilink
    English
    arrow-up
    8
    arrow-down
    1
    ·
    3 days ago

    Thanks, I always confuse these two

  • Xaphanos@lemmy.world
    link
    fedilink
    English
    arrow-up
    4
    ·
    3 days ago

    It’s not wrong.

xkcd@lemmy.world

xkcd@lemmy.world

Subscribe from Remote Instance

Create a post
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !xkcd@lemmy.world

A community for a webcomic of romance, sarcasm, math, and language.

Visibility: Public
globe

This community can be federated to other instances and be posted/commented in by their users.

  • 10 users / day
  • 678 users / week
  • 2.3K users / month
  • 6.48K users / 6 months
  • 232 local subscribers
  • 15.7K subscribers
  • 512 Posts
  • 10.2K Comments
  • Modlog
  • mods:
  • koraro@lemmy.world
  • BE: 0.19.16
  • Modlog
  • Legal
  • Instances
  • Docs
  • Code
  • join-lemmy.org