(1453) Fennia
compiled by Wm. Robert Johnston
last updated 19 March 2008
Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):
orbital data, primary (osculating elements) [JPL]:
|
semimajor axis a: |
1.8971271 AU
| |
orbital period P: |
2.61 y (=954.43 d)
| |
eccentricity e: |
0.0280891
| |
perihelion distance q: |
1.8438385 AU
| |
aphelion distance Q: |
1.9504157 AU
| |
inclination i: |
23.67142°
| |
argument of perihelion omega: |
254.70787°
| |
ascending node OMEGA: |
7.14767°
| |
mean anomaly M: |
154.90760°
| |
perihelion passage TP: |
2006-09-11.31
| |
Epoch: |
27 OCT 2007
| |
data arc: |
1938-2000 (149 obs.)
| orbital data, secondary:
|
semimajor axis a: |
?
| |
semimajor axis/primary radius a/Rp: |
?
| |
orbital period P: |
22.99±0.01 h [W08a]
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
7.2±0.4 km [JPL]
| |
absolute magnitude H: |
12.83 [JPL]
| |
rotation period: |
4.4121±0.0001 h [W08a]
| |
amplitude delta M: |
0.10±0.01 [W08a]
0.08 [W08a]
| |
color index U-B: |
0.532±0.025 [JPL]
| |
color index B-V: |
0.928±0.045 [JPL]
| |
color index V-R: |
0.48±0.03 [W08a]
| |
color index R-I: |
0.49±0.04 [W08a]
| |
slope parameter G: |
0.32±0.10 [W08a]
| |
geometric albedo: |
0.237±0.033 [JPL]
| |
mass: |
?
| |
density: |
?
| |
type: |
S [JPL]
|
other data, secondary:
|
diameter: |
?
| |
diameter ratio Ds/Dp: |
>0.28±0.02 [W08a]
| |
component magnitude difference: |
?
| |
rotation period: |
?
|
|
--(1453) Fennia--discovery and notes:
Primary discovered 8 March 1938 by Y. Vaisala at Turku. Alternate designation 1938 ED1.
Secondary identified by Ondrejov Photometric program using on lightcurve observations, announced 1 December 2007.
See more information and links at
Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
© 2007, 2008 by Wm. Robert Johnston.
Last modified 19 March 2008.
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