234 Barbara

Asteroid profile

Class: MBA

Family: MB-inner

Tholen: S

SMASSII: Ld

GAjpl: 0.205

GAminorpl: 0.2041

Notes on albedo parameters:

GAjpl — geometric albedo from the NASA JPL Small-Body Database.
GAminorpl — geometric albedo from the Minor Planet Physical Properties Database.

Total observations: 36

Bands: B, H, J, R, V

Observatories: Asiago, CASLEO, CASLEO 2.15, Calern, MaunaKea 2.2, Palomar

References: 2008 Gil-Hutton, 2009 Masiero, 2011 Gil-Hutton, 2014 Gil-Hutton, 2017 Belskaya, 2017 Devogele, 2018b Devogele, 2023 Masiero, 2025 Masiero

All rows for this asteroid are exported.

Measurements

Sorting: first by filter groups (U-like, B-like, V-like, R-like, I-like, IR), then by filter, then by phase angle.

Date	Band	Phase	P	sP	Q	sQ	Pr	Qr	Psi	Obs	Ref
2005 / 09 / 27	B	26.02	None	0.21	None	5.7	-0.88	95.9	None	CASLEO 2.15	2014 Gil-Hutton
2007 / 03 / 15	V	8.4	1.61	0.18	122.2	3.1	-1.61	None	121.1	CASLEO	2008 Gil-Hutton
2008 / 05 / 07	V	15.3	1.39	0.07	57.7	1.5	-1.39	None	56.9	CASLEO	2011 Gil-Hutton
2005 / 12 / 09.91	V	15.83	None	0.07	None	1.0	-1.28	85.4	None	Asiago	2017 Belskaya
2015 / 02 / 25	V	16.95	None	0.05	None	None	-1.51	None	None	Calern	2017 Devogele
2015 / 02 / 25	V	16.95	None	0.07	None	None	-1.54	None	None	Calern	2018b Devogele
2015 / 05 / 22	V	17.38	None	0.02	None	None	-1.42	None	None	Calern	2017 Devogele
2015 / 05 / 22	V	17.38	None	0.03	None	None	-1.43	None	None	Calern	2018b Devogele
2016 / 12 / 04	V	18.34	None	0.09	None	None	-1.49	None	None	Calern	2018b Devogele
2005 / 12 / 20.95	V	18.57	None	0.07	None	2.0	-1.26	83.3	None	Asiago	2017 Belskaya
2006 / 02 / 05	V	24.5	0.55	0.15	79.7	6.7	-0.54	None	74.2	CASLEO	2008 Gil-Hutton
2005 / 10 / 01	V	25.0	0.57	0.1	97.7	4.5	-0.57	None	94.9	CASLEO	2008 Gil-Hutton
2005 / 09 / 30	V	25.3	0.61	0.13	111.2	4.4	-0.51	None	94.3	CASLEO	2008 Gil-Hutton
2005 / 09 / 29	V	25.5	0.44	0.16	113.3	7.2	-0.34	None	93.7	CASLEO	2008 Gil-Hutton
2005 / 09 / 28	V	25.8	0.59	0.17	102.8	6.3	-0.56	None	93.1	CASLEO	2008 Gil-Hutton
2005 / 09 / 04	V	30.4	0.72	0.04	172.2	1.4	0.72	None	82.2	CASLEO	2008 Gil-Hutton
2005 / 09 / 04	V	30.4	None	0.04	None	1.4	0.72	0.0	None	CASLEO 2.15	2014 Gil-Hutton
2016 / 07 / 19	V	33.54	None	0.05	None	None	0.62	None	None	Calern	2018b Devogele
2007 / 03 / 15	R	8.4	1.25	0.14	112.9	2.5	-1.2	None	121.1	CASLEO	2008 Gil-Hutton
2006 / 02 / 05	R	24.5	0.73	0.11	74.7	6.7	-0.73	None	74.2	CASLEO	2008 Gil-Hutton
2005 / 10 / 01	R	25.0	0.55	0.08	93.1	4.0	-0.55	None	94.9	CASLEO	2008 Gil-Hutton
2005 / 09 / 30	R	25.3	0.46	0.1	104.9	4.5	-0.43	None	94.3	CASLEO	2008 Gil-Hutton
2005 / 09 / 29	R	25.5	0.4	0.08	95.5	4.9	-0.4	None	93.7	CASLEO	2008 Gil-Hutton
2005 / 09 / 28	R	25.8	0.28	0.14	101.8	10.6	-0.27	None	93.1	CASLEO	2008 Gil-Hutton
2023 / 07 / 26	H	6.7	None	0.1	None	2.0	-1.48	93.2	None	Palomar	2025 Masiero
2022 / 04 / 02	H	9.3	None	0.1	None	2.0	-1.5	134.7	136.9	Palomar	2023 Masiero
2023 / 08 / 26	H	18.3	None	0.1	None	3.1	-0.94	91.2	None	Palomar	2025 Masiero
2022 / 05 / 30	H	20.8	None	0.13	None	4.4	-0.7	107.9	114.7	Palomar	2023 Masiero
2023 / 07 / 26	J	6.7	None	0.1	None	2.0	-1.49	89.3	None	Palomar	2025 Masiero
2022 / 04 / 02	J	9.3	None	0.1	None	1.8	-1.62	139.7	136.9	Palomar	2023 Masiero
2023 / 08 / 26	J	18.3	None	0.1	None	2.0	-1.46	90.6	None	Palomar	2025 Masiero
2022 / 05 / 30	J	20.8	None	0.11	None	6.0	-0.53	123.2	114.7	Palomar	2023 Masiero
2008 / 06 / 11		13.3	None	0.13	None	2.4	-1.67	89.1	None	MaunaKea 2.2	2009 Masiero
2008 / 05 / 14		13.7	None	0.09	None	2.7	-1.53	88.0	None	MaunaKea 2.2	2009 Masiero
2008 / 01 / 17		19.9	None	0.06	None	2.8	-1.24	92.1	None	MaunaKea 2.2	2009 Masiero
2008 / 03 / 12		23.6	None	0.04	None	1.6	-0.93	89.3	None	MaunaKea 2.2	2009 Masiero

Plot filters

The plot shows P_r, and if it is unavailable, P. Error bars use sP. The same reference is shown in the same color.

Marker shape encodes the filter group. Bottom legend: color = reference.

Plot legend

Marker shape → filter group

U-like B-like V-like R-like I-like IR Other

Color → reference