Table 1: The observed 26 spiral galaxies with some basic parameters. The Hubble types were taken from the Carnegie Atlas of Galaxies (Sandage & Bedke 1994). The column $B_{{\rm tot_o}}$ gives the extinction-corrected B magnitudes taken from RC3. The inclination $= {\rm arc cos}(b/a)$ stems from the V-fit in this paper (cf. $Q_{\rm d} = b/a$ in Table 2). The galactic extinction $A_{\rm g}(B)$ , the internal extinction $A_{\rm i}(B)$ , and the radial velocities $v_{\rm 3k}$ with respect to the 3K background were also taken from RC3. The determination of the distances and their references are explained in the text. The exposure times for the UBVRI images are given in seconds. NGC 1232 and 1288 were observed with the ESO VLT1 Antu (see text).
No NGC UGC Hubble $B_{{\rm tot_o}}$ Inclin $A_{\rm g}(B)$ $A_{\rm i}(B)$ $v_{\rm 3K}$ Dist. Dist. $T_{\exp}$

Type (mag) (deg) (mag) (mag) (km s^-1) (Mpc) Ref. U B V R I

1 278 528 4.0 10.76 18.5 0.78 0.02 391 13.86 $b\&t$ 900 480 300 180 180

2 628 1149 5.0 9.76 16.6 0.13 0.06 363 7.80 sim 1200 720 480 300 300

3 1232 - 5.0 10.38 27.0 0.04 0.10 1519 20.00 tul 600 360 180 150 180

4 1288 - 3.0 12.62 35.1 0.00 0.11 4405 72.11 bot - 360 180 - 180

5 2196 - 2.0 11.38 38.1 0.45 0.11 2412 29.43 $b\&t$ 900 480 300 150 150

6 2460 4097 2.0 12.29 56.2 0.14 0.12 1532 26.90 $b\&t$ 900 600 360 180 180

7 2742 4779 5.0 11.47 60.5 0.20 0.44 1401 20.29 $b\&t$ 1200 900 600 480 300

8 2775 4820 1.0 10.81 42.6 0.11 0.13 1650 17.00 tul 900 360 180 90 90

9 2776 4838 5.0 11.96 18.7 0.04 0.07 2816 31.47 $b\&t$ 1200 900 600 300 300

10 2841 4966 3.0 9.58 67.4 0.00 0.50 807 14.10 hst 900 300 90 30 30

11 2855 - 1.0 12.29 37.7 0.16 0.04 2224 26.30 tul 900 480 300 180 180

12 2997 - 5.0 9.34 46.4 0.54 0.18 1388 10.86 $b\&t$ 900 480 360 180 240

13 3031 5318 3.0 7.39 58.7 0.16 0.34 48 3.63 hst - 300 200 60 60

14 3147 5532 3.0 11.24 34.3 0.05 0.08 2875 32.34 $b\&t$ 900 360 180 90 90

15 3430 5982 4.0 11.72 59.0 0.00 0.38 1864 23.85 $b\&t$ 1800 1200 900 600 600

16 3486 6079 4.0 10.77 39.5 0.01 0.20 976 12.30 tul 900 480 300 180 180

17 3521 6150 4.0 9.29 57.3 0.06 0.48 1162 10.80 $b\&t$ 900 300 40 34 25

18 3631 6360 4.0 10.97 10.7 0.00 0.04 1343 21.60 tul 900 600 480 300 300

19 3938 6856 5.0 10.83 17.7 0.00 0.06 1036 17.00 tul 1200 900 600 300 300

20 4254 7345 5.0 10.10 38.3 0.11 0.08 2732 15.30 vir 900 600 360 240 240

21 4274 7377 1.0 10.58 64.8 0.10 0.53 1211 11.92 $b\&t$ 900 480 300 180 180

22 4303 7420 5.0 10.12 34.8 0.00 0.07 1909 15.30 vir 480 480 300 120 120

23 4321 7450 5.0 9.98 36.5 0.06 0.10 1906 15.21 hst 1200 900 600 360 360

24 4725 7989 3.0 9.78 62.7 0.03 0.19 1487 12.36 hst 1200 480 300 240 270

25 4736 7996 2.0 8.75 45.0 0.00 0.11 531 4.46 $b\&t$ 900 240 180 90 75

26 5055 8334 4.0 9.03 55.7 0.00 0.36 711 6.94 $b\&t$ 727 300 120 60 60

**Table 1:** The observed 26 spiral galaxies with some basic parameters. The Hubble types were taken from the Carnegie Atlas of Galaxies (Sandage & Bedke 1994). The column $B_{{\rm tot_o}}$ gives the extinction-corrected B magnitudes taken from RC3. The inclination $= {\rm arc cos}(b/a)$ stems from the V-fit in this paper (cf. $Q_{\rm d} = b/a$ in Table 2). The galactic extinction $A_{\rm g}(B)$ , the internal extinction $A_{\rm i}(B)$ , and the radial velocities $v_{\rm 3k}$ with respect to the 3K background were also taken from RC3. The determination of the distances and their references are explained in the text. The exposure times for the *UBVRI* images are given in seconds. NGC 1232 and 1288 were observed with the ESO VLT1 Antu (see text).
No	NGC	UGC	Hubble	$B_{{\rm tot_o}}$	Inclin	$A_{\rm g}(B)$	$A_{\rm i}(B)$	$v_{\rm 3K}$	Dist.	Dist.			$T_{\exp}$
			Type	(mag)	(deg)	(mag)	(mag)	(km s^-1)	(Mpc)	Ref.	U	B	V	R	I
1	278	528	4.0	10.76	18.5	0.78	0.02	391	13.86	$b\&t$	900	480	300	180	180
2	628	1149	5.0	9.76	16.6	0.13	0.06	363	7.80	sim	1200	720	480	300	300
3	1232	-	5.0	10.38	27.0	0.04	0.10	1519	20.00	tul	600	360	180	150	180
4	1288	-	3.0	12.62	35.1	0.00	0.11	4405	72.11	bot	-	360	180	-	180
5	2196	-	2.0	11.38	38.1	0.45	0.11	2412	29.43	$b\&t$	900	480	300	150	150
6	2460	4097	2.0	12.29	56.2	0.14	0.12	1532	26.90	$b\&t$	900	600	360	180	180
7	2742	4779	5.0	11.47	60.5	0.20	0.44	1401	20.29	$b\&t$	1200	900	600	480	300
8	2775	4820	1.0	10.81	42.6	0.11	0.13	1650	17.00	tul	900	360	180	90	90
9	2776	4838	5.0	11.96	18.7	0.04	0.07	2816	31.47	$b\&t$	1200	900	600	300	300
10	2841	4966	3.0	9.58	67.4	0.00	0.50	807	14.10	hst	900	300	90	30	30
11	2855	-	1.0	12.29	37.7	0.16	0.04	2224	26.30	tul	900	480	300	180	180
12	2997	-	5.0	9.34	46.4	0.54	0.18	1388	10.86	$b\&t$	900	480	360	180	240
13	3031	5318	3.0	7.39	58.7	0.16	0.34	48	3.63	hst	-	300	200	60	60
14	3147	5532	3.0	11.24	34.3	0.05	0.08	2875	32.34	$b\&t$	900	360	180	90	90
15	3430	5982	4.0	11.72	59.0	0.00	0.38	1864	23.85	$b\&t$	1800	1200	900	600	600
16	3486	6079	4.0	10.77	39.5	0.01	0.20	976	12.30	tul	900	480	300	180	180
17	3521	6150	4.0	9.29	57.3	0.06	0.48	1162	10.80	$b\&t$	900	300	40	34	25
18	3631	6360	4.0	10.97	10.7	0.00	0.04	1343	21.60	tul	900	600	480	300	300
19	3938	6856	5.0	10.83	17.7	0.00	0.06	1036	17.00	tul	1200	900	600	300	300
20	4254	7345	5.0	10.10	38.3	0.11	0.08	2732	15.30	vir	900	600	360	240	240
21	4274	7377	1.0	10.58	64.8	0.10	0.53	1211	11.92	$b\&t$	900	480	300	180	180
22	4303	7420	5.0	10.12	34.8	0.00	0.07	1909	15.30	vir	480	480	300	120	120
23	4321	7450	5.0	9.98	36.5	0.06	0.10	1906	15.21	hst	1200	900	600	360	360
24	4725	7989	3.0	9.78	62.7	0.03	0.19	1487	12.36	hst	1200	480	300	240	270
25	4736	7996	2.0	8.75	45.0	0.00	0.11	531	4.46	$b\&t$	900	240	180	90	75
26	5055	8334	4.0	9.03	55.7	0.00	0.36	711	6.94	$b\&t$	727	300	120	60	60

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