How to find planet with earthlike day/night cycle?

Good day!

I would like to find a landable atmospheric planet with same day night cycle as on earth.
Is it hard to find or calculate it? What can we do to find such a planet or system?
 
There's no way to calc one. Orbital rotation is pretty much random. You can just check as many planets as you can or maybe search EDSM, the data is probably logged somewhere. If you ask nice Anthor might even write you a list.
 
There's no way to calc one. Orbital rotation is pretty much random. You can just check as many planets as you can or maybe search EDSM, the data is probably logged somewhere. If you ask nice Anthor might even write you a list.
but if I found one then daytime change will be stable all the time?
 
The galaxy isn't dynamic. The values are fixed. A body with a 24 hour rotational period will have that 'til the servers die. Not that there are a lot of things that will mess with a planet's rotation....
 
Does it have 24/h cycle like in our system? I mean if land on planet will the cycle be same as in real time?

You mean the planets, Sol itself should have the same rotational period, and the planets should unless they were changed during terraforming, but only earth will have a 24 hour rotational period. As mentioned all the data is available on EDSM, just compare it to known values.
 
every planet is moving. with day and night. but every planet has is own rhythem. and it takes hours to see it. z.b. go to the same settlement over and over. so the settlemant is in daylight or at night.
 
Can't land on Earth (like worlds) so no you can't check...yet. And earth is the only planet with a 23.9whatever hour period so most if not all of Sol will not fit your criteria.
 
Here's the first few around Sol, should be landable. Quite surprising we still have CMDRs who've never noticed locations being different on different landings, and never seen a sunrise / sunset ...

name | rotational_period | from_sol --------------------------------+-------------------+---------- Major's Mine | 1.00465 | 11 Groombridge 34 A 9 a | 0.991104 | 12 SPF-LF 1 6 a | 0.991863 | 12 Flousop A 4 | 0.997196 | 17 Ross 671 AB 3 a | 1.00699 | 22 WISE 0713-2917 2 | 1.00939 | 23 RR Caeli C 5 a | 1.00435 | 27 RR Caeli C 2 c | 1.00572 | 27 LHS 149 8 | 0.994029 | 30 G 14-6 A 7 d | 0.998828 | 34 LTT 8181 B 2 a | 1.00423 | 35 Blest 5 a | 1.00643 | 39 LHS 6427 B 5 d | 0.994078 | 40 Core Sys Sector CB-O a6-0 2 | 0.993337 | 40 LFT 142 1 e | 0.994985 | 40 Hambula B 1 | 1.00789 | 40 Edenapel C 1 a | 0.994068 | 40 LP 5-88 3 a | 0.991739 | 41 Dala A 1 a | 0.999891 | 42 Athra C 6 | 1.00672 | 42 Hoko 2 d | 0.990694 | 42
 
Here's the first few around Sol, should be landable. Quite surprising we still have CMDRs who've never noticed locations being different on different landings, and never seen a sunrise / sunset ...

name | rotational_period | from_sol --------------------------------+-------------------+---------- Major's Mine | 1.00465 | 11 Groombridge 34 A 9 a | 0.991104 | 12 SPF-LF 1 6 a | 0.991863 | 12 Flousop A 4 | 0.997196 | 17 Ross 671 AB 3 a | 1.00699 | 22 WISE 0713-2917 2 | 1.00939 | 23 RR Caeli C 5 a | 1.00435 | 27 RR Caeli C 2 c | 1.00572 | 27 LHS 149 8 | 0.994029 | 30 G 14-6 A 7 d | 0.998828 | 34 LTT 8181 B 2 a | 1.00423 | 35 Blest 5 a | 1.00643 | 39 LHS 6427 B 5 d | 0.994078 | 40 Core Sys Sector CB-O a6-0 2 | 0.993337 | 40 LFT 142 1 e | 0.994985 | 40 Hambula B 1 | 1.00789 | 40 Edenapel C 1 a | 0.994068 | 40 LP 5-88 3 a | 0.991739 | 41 Dala A 1 a | 0.999891 | 42 Athra C 6 | 1.00672 | 42 Hoko 2 d | 0.990694 | 42

I've sat through a few sunrises and sunsets in both the old volcanic sites and bio sites, watching the fumaroles and vents slowly start activating as the ice heats up with the rising of the sun is quite an experience, and sitting in the mists of a Brain Tree site as the sun slowly pushes it's way through, well they were fun days, I must try that on atmospheric worlds one day!
 
Does it have 24/h cycle like in our system? I mean if land on planet will the cycle be same as in real time?
The 24-hour day/night circle is in Sol pretty much exclusive to Earth, which we can't land on. Other planets and moons are landable, but you'll have to check the system map to see if the world is tidally locked (always facing the body it orbits) or not.
 
Sunsets and rises tend to be better to experience than they come out in pics

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Also recently was around a Thargoid Base just before sunrise - the light shining just on the tops of the base while the scavengers wandered around in red puddles of light was very good. Pic would have looked almost completely black :)
 
I've sat through a few sunrises and sunsets in both the old volcanic sites and bio sites, watching the fumaroles and vents slowly start activating as the ice heats up with the rising of the sun is quite an experience, and sitting in the mists of a Brain Tree site as the sun slowly pushes it's way through, well they were fun days, I must try that on atmospheric worlds one day!
Thanks a lot for posting it, I did not know there is such a thing like behaviour change of volcanic and bio sites on sunrise / sunset. I'll definitely check it out myself!
Btw, It is amazing to see how much little gems ED has.
 
Well, except a few hundred billion tidally locked worlds.
Even then the tidal lock is often imperfect. There's a few inhabited ones near me which are marked as tidally locked on the map, and over the few days of their orbit the side facing the sun doesn't noticeably change, but over a period of several months the sun does rise and set because the rotational and orbital periods aren't exactly the same. Obviously a simplification of the stellar forge that causes them to rotate rather than oscillate relative to the star in that situation.

And then there's also oddities like the World of Death which are tidally locked but on a 2:1 rather than 1:1 ratio because of the eccentricity, so you still get regular sunrises and sunsets but on a very set pattern relative to the orbit.
 
Is there an explanation for why Earth's day/night cycle doesn't match reality? You can look down from orbit on your current real-life location and the time of day/amount of daylight will be completely different than what it is in the real world.
 
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