# Could the disappearance of Gallifrey cause a gravitational anomaly in Kasterborous?

In The Day of the Doctor Gallifrey was frozen in a single moment, practically disappearing from its place for the rest of time. Were the other planets in Kasterborous realigned / rearranged due to the disappearance of Gallifrey's mass and gravitational pull?

• I have no real answer, which is cannon. But I have a nice link for you to read and get some actual data to munch on: reddit.com/r/gallifrey/comments/1p5mc1/… Jan 16, 2015 at 14:06
• @mebu83 this Reddit post is gold, thank you! :) Jan 16, 2015 at 14:19

Although it's not specifically focused on Gallifrey, this quote from NASA Engineer Robert Frost gives a pretty good indication of how little even the largest planets actually perturb each other:

For example, take Jupiter. It is 1/1000th the mass of the Sun and 5 times farther away. So Newton's F=GMm/(R^2) indicates the effect of Jupiter on the Earth is 1/25000 that of the effect of the Sun on Earth. That is pretty negligible. It's possible Jupiter's contribution has resulted in a slight increase in the Earth's orbital eccentricity - but not enough that our lives would be different if Jupiter had never existed.

I think it's fair to say that if Gallifrey disappeared overnight, the actual impact on its solar system would somewhere between almost none and actually none.

• How do you know the mass of Gallifrey? It can be as big as its Sun. Jan 23, 2015 at 1:39
• Also, this quote is irrelevant. Not having Jupiter in Solar System and Disappearance of Jupiter both are different things. Disappearance (which isn't defined in General Theory of Relativity) can be problematic. Jan 23, 2015 at 1:47
• @SachinShekhar - Actually no. It can't be as big as the sun. In the episode "End of Time" we actually see Gallifrey's size in comparison to the Earth (approx 5 times larger) and we know the its gravity is roughly Earth-normal which means we can presume that it's approximately the same mass as Earth but 5 times less dense. Jan 23, 2015 at 1:55

I suppose it would but it wouldn't be signifficant. The Time War take Gallifrey from every Time Zone. It was never there, thats why the TimeLords will be kept as a legend that never existed, only as a story. Like when the Eleventh Doctor where erased from the Space-Time continium as a thing that never happened but it stay as a story. Well, the point is that there wouldn't be any distorsion in the constelation because there never where a Gallifrey.

• Actually that makes pretty much sense. Jan 28, 2015 at 13:52

Yes. Whynot.

From The Day of The Doctor transcript:

[Tardis 8.5]

GENERAL [OC]: Ready to do what?

[Tardis]

DOCTOR: We're going to freeze Gallifrey.

[War room]

GENERAL: I'm sorry, what?

[Tardis 10]

DOCTOR 10: Using our Tardises, we're going to freeze Gallifrey in a single moment in time.

[War room]

WAR DOCTOR [on monitor]: You know, like those stasis cubes? A single moment in time, held in a parallel pocket universe.

[Tardis]

DOCTOR: Except we're going to do it to a whole planet.

[Tardis 10]

DOCTOR 10: And all the people on it.

[War room]

GENERAL: What? Even if that were possible

[Tardis]

GENERAL [OC]: Which it isn't, why would you do such a thing?
DOCTOR: Because the alternative is burning.

[Tardis 10]

DOCTOR 10: And I've seen that.

[Tardis]

DOCTOR: And I never want to see it again.

[War room]

GENERAL: We'd be lost in another universe, frozen in a single moment. We'd have nothing.

Freezing in single moment from the perspective of our universe meant surviving in another pocket universe. There's no reason to believe that Spacetime curvature (gravity) associated with Gallifrey mass would not go with it. So yes, it'd have disturbed the star system of Gallifrey (as for Kasterborous, it's the name of constellation. From that scale, there'd be no visible effect).

To prove that Gallifrey wasn't with zero Gravity (Time Lord tech), here's transcript from The End of Time (2):

(A big burning planet appears close to the Earth.)

[Nobles' home]

SHAUN: Donna. Where's Donna?
(The tidal forces of the new planet make the Earth shake. Thinks fall off shelves.)

[Outside the Nobles' home]

(People are panicking as Gallifrey fills the sky.)
SHAUN: Donna? Donna! Donna!