| Tentai Kansoku 天体観測 | |
| Cover: | Tentai Kansoku (Bump of Chicken single - cover art).jpg |
| Type: | single |
| Artist: | Bump of Chicken |
| Album: | Jupiter |
| B-Side: | Bye Bye, Thank You |
| Released: | March 14, 2001 |
| Recorded: | Japan |
| Genre: | Rock |
| Length: | 4:24 |
| Label: | Toy's Factory TFCC-87080 |
| Producer: | ??? |
| Prev Title: | Diamond |
| Prev Year: | 2000 |
| Next Title: | Harujion |
| Next Year: | 2001 |
is the third single by Bump of Chicken. The title track is from the album Jupiter. "Tentai Kansoku" was used as the second ending theme for (2022), covered by the main character's voice actress, Rie Takahashi. A parody of this song was sung by Tadano from Komi Can't Communicate (2021).
All tracks written by Fujiwara Motoo except track 3.
| Chart | Peak Position | |
|---|---|---|
| Oricon Weekly Charts[1] | 3 | |
| 2001 Oricon Top 100 Singles | 26 |