Say a planet has no temperature because its star's luminosity or its orbit is unknown, not its star

The card and the body page said "Its host star is not in the catalogue" for every planet without
an equilibrium temperature. Over the shipped data that is 2 714 planets, and the host really is
missing for 27. 2 420 have no semi-major axis, and since 869635b gave a star no survey measured no
luminosity, 267 more have a host that is on the map: OGLE-2005-BLG-390L b's card said so inside its
own host's system. The text now names both things that can be missing without claiming which:
"No temperature could be derived: its star's luminosity or its orbit's size is not known." In the
app on :4302, /body/OGLE-2005-BLG-390L b and /body/PSR J1719-1438 b read it.

Test: the object card's missing-temperature case now expects the new sentence and checks the old
claim is gone. Control: putting the old sentence back fails it.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/app/features/galaxy-system/system-object-card.component.spec.ts

@@ -108,7 +108,9 @@ describe('SystemObjectCardComponent', () => {
       appearance: appearance({ equilibriumTemperatureK: null }),
     });
     expect(block(host, 'Derived')).not.toContain('Equilibrium temp.');
-    expect(host.textContent).toContain('host star is not in the catalogue');
+    // Not that the host is missing, which it is for 27 of the 2 714 planets without a temperature.
+    expect(host.textContent).toContain('its star’s luminosity or its orbit’s size is not known');
+    expect(host.textContent).not.toContain('not in the catalogue');
   });
 
   it('emits rather than navigating, so the scene decides what selection means', () => {