How long does it take to watch all of Kanata no Astra?

About 5.6 hours for all 12 episodes at 28 min each — a weekend; at two episodes a night that is 6 evenings.

Is Kanata no Astra finished?

Yes, Kanata no Astra is finished (12 episodes), so you can watch the whole thing at your own pace.

Is Kanata no Astra good for a group?

Yes. Kanata no Astra is tagged action, comedy, the tags that survive a room full of people talking over the screen.

Where is Kanata no Astra listed?

Kanata no Astra is on AniList (id 107663) and MyAnimeList (id 39198); Queue Up keys it by its AniList id and shows it when it is on either of your lists.

Queue Up — what anime do we watch?Compare two AniList lists →

Anime lists › Best survival anime to watch with a friend

Is Kanata no Astra good to watch with a friend?

Easy to drop in. Kanata no Astra (ASTRA LOST IN SPACE) is a TV series from Summer 2019 by Lerche: 12 episodes, about 5.6 hours in total, finished, 8.09/10 across the listing sites.

actionadventurealiensmanga adaptationcomedycoming of agecrimedetective

Watching it together: easy to drop in. Comedy or action in a short run: you can start tonight without a plan, and a missed episode does not ruin it. about 5.6 hours for the run, 6 evenings at two a night. Rule: episodic, slice-of-life, or comedy/action ≤ 26 episodes → easy to drop in.

This verdict comes from rules over the title's format, length and tags, not from a review — the rule that fired is named above.

The facts

Type: TV series
Episodes: 12
Episode length: 28 min
Total time: about 5.6 hours — a weekend
First aired: Summer 2019
Status: Finished
Studio: Lerche
Score: 8.09/10 across the listing sites
Tags: action, adventure, aliens, manga adaptation, comedy, coming of age, crime, detective, drama, found family, friendship, mystery, nudity, space, politics, post-apocalyptic, revenge, romance, sci-fi, shounen, survival, thriller, tragedy, violence, war

Data from anime-offline-database (ODbL) as of 2026-07-04; the score is the median of the scores the anime listing sites give it, on a 1–10 scale. Also listed as: Astra: Lost in Space.

Do you and a friend both want to watch Kanata no Astra?

Queue Up reads two public AniList lists and shows every anime you both have on Planning — with Kanata no Astra flagged if it is one of them — then picks tonight's with a weighted roll or a bracket.

Or open it on AniList or MyAnimeList.

More like this: action · adventure · aliens · manga adaptation · comedy · coming of age · crime · detective · drama · found family · friendship · mystery · space · politics · post-apocalyptic · revenge · romance · sci-fi · shounen · survival · thriller · tragedy · war.

Quick answers

How long does it take to watch all of Kanata no Astra?: About 5.6 hours for all 12 episodes at 28 min each — a weekend; at two episodes a night that is 6 evenings.
How many episodes does Kanata no Astra have?: 12 episodes of 28 min.
Is Kanata no Astra finished?: Yes, Kanata no Astra is finished (12 episodes), so you can watch the whole thing at your own pace.
Is Kanata no Astra good for a group?: Yes. Kanata no Astra is tagged action, comedy, the tags that survive a room full of people talking over the screen.
Where is Kanata no Astra listed?: Kanata no Astra is on AniList (id 107663) and MyAnimeList (id 39198); Queue Up keys it by its AniList id and shows it when it is on either of your lists.

Queue Up is a free tool: enter two AniList usernames and it ranks the anime you both want to watch, rolls one for tonight, runs a bracket to settle it and finds new anime that fit both of you. List data from AniList; title data: anime-offline-database (ODbL), dataset of 2026-07-04; page updated 2026-07-04. Not affiliated with AniList or MyAnimeList. Queue Up is a Somebody Decide program. How it works · Legal & privacy · All lists